I'd be up for a Fort Maxx, but my vote would go to Ginrai. Or Fattimus . How crazy would that be to make cool?

I don't think Beast Wars MPs would work so well. the beast modes would either be a brick (allowing no movement), or all gappy to allow for movement which would kind of suck. Unless they put a skin all over it somehow.

Only the robot mode would really look Masterpiece like. IF they opted for Transmetals, I think they would have more success.

Dai Atlus would make an interesting Masterpiece though.