Let me start by saying this: I'm sure this has been thought of before, but as far as I know, a hack like this has never been completed.
Hack of: FireRed
Basically, it's going to be a complete overhaul where every Kanto sprite has been changed to something from Mario games. I've changed about 90 pokemon sprites using ML

S spritesheets, but only the front ones. I'm having real trouble finding adequate back sprites :/ Anyone have a good solution?
Also, is there a way for me to change (in hex) the number of starters available to the player and rival?