the b2200 auto trans is a piece, any rotary engine would tear it apart best get a 12a or 13b with a trans and do some cutting and welding yourself. the turbo 13b would be a good swap, the engine is the same size pretty much as the stock 4 banger, and makes 200hp at the "crank" (eccentric) shaft.
I'm doing a 13b turbo b2000 and running series 5 turbo box. Had to make custom mounts and Cross member for the engine to get it sitting low and where I wanted it. The gear box mounts near lines up and didn't take much mucking around. Also just had to change yolk over on drive shaft to suit gear box. Been in the shed for 3-4 years getting dusty. Need to finish it off asap!