Currently 2 and 3 have problems on Dolphin, I would consider using OpenGL plugin 2.9 on ePSXe to make everything look hi res'd.
As for MG, I don't see why it isn't possible but I'm sure it would be a real pain in the ass, plus I don't see too many MG fans that play Dolphin, besides myself.
As for MG, I don't see why it isn't possible but I'm sure it would be a real pain in the ass, plus I don't see too many MG fans that play Dolphin, besides myself.