I hadn't followed the older thread and have read it right now: well Cataholic, it looks as if this is the best solution at least for Zonie -and I think you fell in love with her immediately. I am admiring people like Jen and you -because so many cats indooors is really hard work but she knew exactly where to go.....
Now I have only 2 neutered toms but 20 years ago Grisette had a litter -and at the same time I found a litter of 4 (about 6 weeks old) in the woods
I remember half of the University of my home town helping me to get good places for them all.
Tell us soon what name you finally chose and keep us posted.