Allopurinol is very easy to obtain, it's a very common drug and Tracie can actually figure out the dosing for you and tell you how to prepare it for her...waiting a week to get that medication is absolutely ridiculous, she could have written a prescription to be filled at any pharmacy in the country, and then prepared the correct dosage based on her weight from that, she's ordering it already compounded into the correct dose for her weight, which is ridiculous. I'd actually wait for Tracie to chime in here, she can tell you what milligram prescription is best in order to prepare it for her, and then once you know that I would call the vet back and tell her that you want her to just write a prescription for that milligram pill because you know someone who is a scientist that studies and treats disease in bearded dragons, is very experienced in treating gout in bearded dragons, and who knows exactly how to prepare the correct dosage for her from that milligram pill. And a generic prescription of Allopurinol from a human pharmacy is only going to cost a few dollars, versus the no doubt ridiculously high cost of a special veterinary prepared form that arrives already compounded. You're going to pay big bucks for someone else to do what Tracie can instruct you to do yourself. Plus she needs to get on the medication immediately...
I had never heard anything about the Repashy/commercial bearded dragon food preparations causing this issue in specifically roaches if they are fed theses foods as gut-loading, but it makes perfect sense. If that is actually what caused this in her, it may actually be a good thing, because if so, the source of the uric acid has already been eliminated from her diet, and it's quite possible that the medication may be all she needs to reverse the effects and actually "cure" her, because in this scenario it's not caused by genetics...
I wouldn't think negatively about the uric acid level, the reason it was so high is she was eating those roaches and it was spiking her blood level for sure. I've seen many, many young beardies with uric acid levels in the high 30's and low 40's, and I believe they have all been gout caused by genetics and they are beardies that are now all doing very well, though they all need to take the medication every day for the rest of their lives. In your girl's case it's likely that this isn't the situation. The main thing you need to concentrate on is getting as much
hydration in her as possible every single day, because the only thing that would be fatal to her at this point would be kidney failure, and the fluids are the key to preventing that from happening.
Subcutaneous fluid shots are a very good idea, as they act as a kind of "poor man's dialysis", and will most definitely be great for her kidneys and flushing all of that uric acid out of her system. I suspect that when you go for a repeat uric acid blood test after she takes the medication for probably around a month, that her uric acid level will be drastically lower than it is now, it's probably lower now than it was last week when she had the blood taken, as if I remember she was actively eating the roaches at that point, which would definitely spike her blood level of uric acid. So offer her fluids often, and I would definitely ask your vet to show you how to give her subcutaneous fluid shots at home, and the vet should have no problem sending you home with pre-filled syringes ready to go. It's very easy to do, and once you do it once you're good to go.
I know you're extremely worried about her, but I think right now it appears a lot worse than it actually is. I don't like the vet waiting for over a week to order already compounded Allopurinol, that's not cool, but I'm quite pleased that she chose to not worry about the coccidia or the pinworms right now, I don't know what her levels were, but they can live with coccidia and pinworms in their their gastrointestinal tracts for their entire lives without them causing any issues at all. Any symptoms of lethargy, lack of appetite, or anything else that she was having were not related to gastrointestinal parasites, they were due to the pain she's been in from the gout, no doubt at all about that. And putting her on an antiparasitic medication and an antiprotozoan medication right now would be very counterproductive and very detrimental to her recovery from the gout. She should not be on any other medications right now besides the Allopurinol, and I'd also start giving her a probiotic daily as well, I'd start it ASAP so that it's in her system before she starts the Allopurinol. The probiotics will even out her gastrointestinal tract and settle her stomach should the Allopurinol upset it at all. They will also keep her bowel movements regular if they do in fact become effected by the parasites. I would also ask the vet for pain medication for her ASAP, most beardies that I've seen get a prescription pain medication on the day they go in to have the blood test done, usually it's either Metacam or Tramadol, and the beardie's usually perk up quite a bit immediately after they start the pain medication, their appetites increase drastically (who can blame them for not wanting to eat or move when they're in that kind of pain all day long, every day), they start moving around more, they start putting weight back on, and are much more adept to fighting off the gout. Stress caused by the severe, constant pain of Gout causes their immune systems to weaken, and this is most likely the reason that her coccidia and pinworm levels have risen. This is the very first time I've seen the reptile vet not prescribe a prescription pain medication for a dragon with suspected gout, and now that it's been definitively diagnosed there is absolutely no reason for the vet to not put her on a pain medication. I'd insist upon it.