I'm glad to hear Hazel is in good shape. They do get scabs now and then, especially around their nose. They tend to heal up pretty well though.
Warrior is likely to be in rough shape off the bat. A good diet and lighting should help halt the MBD and help him gain strength and adapt over time. Strength will also help him keep parasites in check. I'd be cautious about bombarding him with meds right off the bat, and focus on getting him used to regular, healthy food and a clean environment for a while. I recommend giving him a month or two in order to settle into a new routine, then revisit the parasite issue barring any downturn in his behavior or health. Did they check for atadenovirus? There isn't a whole lot to do to fix that, but it would be good to know. Especially in order to prevent cross contamination. Thorough hand washing when moving between dragons and a good sanitization routine should be adequate to handle that though, and is a good idea either way.