This past day, and last night, I began work on the UV maps. As of posting the outside of the head, the front legs and the back legs (except for the toes) are about ready. I still need to refine the UVs for the teeth, the claws and perhaps arrange the fins. Ideally on a single plate but there could be exceptions as the bone requires a different texture setup to the rest of the body..
I figured I might be able to reduce the complexity of the model by creating a mirror-line. Using the clone stamp tool in Mudbox I can easily blend the texture maps so while they don't quite fit right now, the divides should be invisible with some clever tool use.