Noahsmommy,

You can also use a Rubbermaid 19 gallon storage bin as a hiding place. Just flip it over so the cover is on the bottom. Cut a hole in it so she can get in and out. Line it with newspaper and hay/straw. I've used them many times for feral colonies and they work great! It's alot cheaper than an igloo.

I hope you can fit her into your household! That is wonderful that your hubby is making an outside enclosure for her. She sounds like a great cat and just needs a chance to trust humans again. Please let me know how you make out!