I like that idea, did you find an old pack frame for it? I was looking for one a few months ago for the same idea but with an old Idaho grizzly I have that's falling apart. Its small and was shot in Idaho many years ago and is missing some toes now and tearing but I thought I could save it by putting it on an old pack frame like your talking about here. Socum Creek Taxidermy in Grangeville has some bears done this way and he gave me the idea this spring. You will have to show us what it looks like when complete!