Looking for pointers on a custom
 

So I'm going to attempt to create a Mr. Knight MU custom using a Professor X body. But that's all I have at the moment. So my question is, what do I do from here? What kind of paint do I use? What head? What do I sculpt with?
http://www.themarysue.com/wp-content...14-580x390.jpg
If there's anyone here who's made one before, help a guy out please.