Not sure if the photos will work, I hope they do.
You may not be interested in the double wall style at all, but this is worth checking out. It's a DIY Bushbuddy clone, there is a fantastic thread about it somewhere around here. This is my first attempt.
The whole set up, with pot stand on top. The stand slides between the walls for storage.
Here is a view from the bottom, showing all the parts. This is very easy to make and costs under $5.00
BTW, what is your aversion to fiberglass? You could get some fiberglass rope from a local woodstove shop that may work for your application - though it's hard to tell without pictures.