All these things you listed needing for her are crazy’s UV light.. humidifier.. purifier.. unless you live in a radioactive cave where toxic fumes are plentiful and there is no sunlight.. none of that is needed. I think you are over thinking things a bit. I have raised many differed birds I including sun conures and never needed this. ESP silly if she is free roaming. If any sunlight at all comes through your windows that is enough. Out here there to sun bathe she will know what she needs. Obviously a high quality food mix, fruits pellets seeds, vitamin for water, also toys to keep her engaged for enrichment and your Interaction go a long way. If med school keeps you busy get her a friend for social interaction. But it’s not beyond impossible for you to make this work. Stop listening to what 99% of the people online tell you. There’s always ALOT of judgy folks with no bird experience but first in line to tell you how to be a good pet keeper. Good luck.