Cool.
I think you should take this to Hg/Ss as a post-E4 challenge, where you defeat Kanto gym leaders, Elite 4 on 2nd round, and Red, with only Wobbuffet. Simply because the physical/special split, and Mirror Coat vs. Counter prediction is harder in the GBA games for many people, including me.
Obviously, it'd be pointless in D/P/Pt, due to lack of extra storyline:D