at least I can tell about the 0-1 resolution for the UVs. if you have a homogen texturefile, it would be no problem. but when connecting the UV shells from the whole geometry to each other and you scale it - the texture would repeat itself. that includes the text on his belly, trousers and shoes. this stuff would appear multiple times on the geometry. If your dog is only mapped with homogen maybe furlooking texture, scaling would be no problem. hope I didn´t missunderstand you.

cheers!

Daniel