Thanks (almost) everyone for the advice.
I did pass the interview and my little ragdoll kitty is coming on Wednesday!
I've done a lot of reading and FIV+ cats generally have almost as long a life span as regular cats. I have to stay on top of her health and never miss a checkup but other than that she should be like any other cat. She can't go outside but I wasn't planning on letting any cat outside...and ragdolls can't be outside cats anyway.
She will get tons of attention, I work from home (violin teacher) and I'll be there all day to take care of her. My students are almost more excited than I am for the kitty, I think she'll be getting lots of pets from them too.
I spent a shit ton at Amazon yesterday and need to prep my house now. She's gonna need a few days to decompress and explore. I have a big house that's gonna require some getting used to.
Super excited!