M44 for S52 swap, please help!

[97Hellrot318ti]

I haven't been around for around 2 years now, but I'm coming back with a vengeance:

A friend of mine is parting out his E36 M3 (in order to buy its E30 predecessor), the motor of which has only 32,000 miles on it. I'm buying it, and we're going to put it in together. He knows a lot about BMWs in general, and his mechanical knowledge is far beyond my own, but neither of us have ever done this kind of swap before. I know that there used to be complete walkthroughs in here somewhere, or at least I thought, but I can't seem to find one. If someone could link me or point me in the right direction, I would be most grateful.

Incidentally, he converted his engine to OBDI, and my car is currently OBDII. I saw the thread regarding getting the MPG to work, but if anyone has any other warnings or suggestions I'm all ears. I'm also planning on putting in his CLOTH vaders (sweet...); both of our seats are heated, and I was wondering if it's just plug and play with those or not. Thanks in advance for the help, and I'll be sure to keep everyone posted once I get started.