Well I am unable to satisfy you.
1. No need for re UV-mapping.
2. No need for Re-vertex generation.
3. No need for adding edge-loops.
4. If you are using a bone or bip animation and have them handy then no need for reanimating.

All these things will be done in a single step by hand. Without using any software or redoing anything. If you are not understading then yet then I am sorry to say that I fail to put forward my speciality.

I have already offered my services if the concerned party needs my help. Other than that I cant do anything to convience you.