falcon,
Why on earth would you take being invited/excepted into her home as a ''Red Flag?
Your seeing too much into things, take it from me, ...if she didn't trust you sufficiently you wouldn't be invited to stay at her home...FULL STOP!! So basically your throwing her trust in you, straight back at her..
I suppose you would also think that being accepted into her bed, is also a Red Flag??
You don't seem to give these Chinese ladies much credit for there love and trust in you. You seem to be able to see Reg Flags and Scams around every corner...
Your coming on to 60 yrs old, I suggest you use the life experience and common sense you have gained over the years, by waiting till you meet her face to face before you start to judge her. You may very well be more than surprised by what you find!!! There's never any guarantee's in life, but there is also no need to cut a real chance of being happy out the window either. So don't screw up, thinking the worst until you know for sure.
Remember you may not have been the first Westerner that she has corresponded with, and they or he may have let her down badly. But she is still showing you trust enough inviting you to her home. Sort out the other things when you get there... they will in all likelihood fall neatly into place. She wants to see and be sure your Real and not just another waste of time and space!!
David