I HAVE a Protoman.EXE model, but there are a few problems:
1. Super High Poly. Don't know if Pro Optimizer would/can fix it.
2. Not Rigged. It's not in T-Pose either. But it can easily be T-posed (the arms are almost t-posed anyways).
Soooooooo.... You still want?
Edit
3. He doesn't have a buster sword either, so you'd have to vertex it. Or you could ask to use GBC and Dot's Megaman.EXE and take the sword from there
That's why I just recolored GBC's Megaman.EXE to look like Protoman.EXE until I could find a proper Protoman.EXE
Extra info: mariokart64n converted it into a max scene for me. It was originally a pmd. Looks pretty freaking sweet. I'll get a pic up later if I can.
Original model was made by TehPuroisen (or something to that effect), and he SHOULD have a mouth... At least I think so....