Hi,
Our paths cross again but then, I think I know who your fiancé is...

and it sounds like she's lucky to have you.
To answer your question, since she seems to be doing fine, I'm not sure there is not much you can do other than provide plenty of LTC
That being said, if not already done, there are a few things that would be useful to have in advance:
- bed liners to avoid messing up sheets etc (60 cm x 60 cm is fine)
- plenty of lubricating gel (KY or similar water soluble product)
- non perfurmed baby wipes
- panty liners
- antiseptic soap eg. hexomedine based for cleaning dilators
- a wound healing accelerator like Cicaplast to help minimize scarring of external incisions
Anything more serious than that would probably require a visit to the doctor, hopefully something she won't need.
Wishing you both a very happy homecoming!
Donna