I've backed quite a few. The key is to get the finish off the back of the limb. Sometimes the old Bear finishes fail, sometimes they hold. Dont take the chance, carefully get it down to the glass.
If you are looking to resell it, not a great idea. MANY( I'm talking MANY) people have questioned what I'm "hiding" under the snakeskins.
Whatever, you dont trust it, dont buy it right?
I personally LOVE skinning Kodiak Hunters and Kodiaks. Copperheads look fantastic on brown glass. A couple of 50+ pound mid 1960's Kodiak Specials got done also. The Gainesville Green Grizzlys look great with green western diamondbacks or prairies on them.
Definitely do-able, they look great.