Made a bit of progress this weekend. Pulled the m50 out on saturday, stripped it down, swapped parts to the s52. Bolted clutch/flywheel/tranny up to the s52 this morning, and dropped it in this afternoon!
Good time to pull it out. Throwought bearing was messed up. Found some metal bits in the tranny.
s52 stripped down:
Underside looked really clean. Swapped the oil pickup to accomodate the e34 pan and secured the oil pump nut
Now just have OBD1 stuff to figure out. Waiting on an engine harness+ecu. Need to pick up a bunch of sensors, then it should be good to go. My next event is September 14th so the plan is to have it running by then!