that's an awesome start.
you need to get 2 probe thermometers, one to gauge your basking spot temperature, and one to measure the cool side of the tank.
you may also want to consider getting a secondary light for the cool side of the tank (put a low wattage house bulb in it to keep the temps up at 80-85)
I'd get your set up a few weeks in advance and set up your lighting and heating and work on it until you dial it in. my husband walked in on me staring at a lit up empty 40gl tank one day (i was sitting there waiting for the temps to heat up) and he thought i was crazy. but spending the time before the beardie shows up working on that makes one less thing to worry about when you get him or her. I'd get a nice basking rock with a nice flat surface from the yard, boil it for 20 minutes or so to kill anything living on it, and then set figure out what the basking spot temp will be on top of it. My basking rock is about 3 inches high and with a 75watt bulb it's about 95-98 degrees (you'll want it a little higher with a baby 105-110), which you can do by slightly elevating the rock with tiles underneath until it's just right.
The other thing you need to be prepared for is looking after your feeders.
Crickets are the usual suspects, but are expensive if you buy them for each feeding. Many order online in bulk, but then you need to keep them somewhere. a 10 gl tank works really well for this. petstores sell plastic critter keepers, but they are smaller. you need to 'gutload' the crickets before feeding them to the beardie with fishfood, oatmeal, veggies.
Consider starting a dubia roach colony (if you can stand having them in your house). They are easy to breed, and will save you a lot of money. lots of folks start the colony before the beardie as it can take 4-6 months to really get them going...check the board there are several threads with pictures on how to set these up.