I already got the wire harness and DME from a 94 325i, as well as the MAF, knock sensors, crank sensor, and the other sensors you need. When I actually do the conversion I'm planning on documenting the whole thing correctly and not finishing the damn thing with, and just the sensors, or and use the rest of your M50 parts.
There have definitly been a few guys who have helped me out tremdously though, so I'm very glad for their assistance.
I'm not the first person to do this swap though, however the first guy already dismantled his, but from everything he said, it sounded pretty dang sweet.