What you wish to accomplish is very doable--best done with the donor car handy. The torque converter flex plate will bolt onto your flywheel. You'll need the shifter assembly (bolts in), front half driveshaft, wire harness/neutral safety switch (in shifter housing), radiator with trans cooler, oil lines, crossmember/mount, speedo cable. If you need a donor car I could be persuaded to tow an abandoned project car to Thomasville, NC (my son's shop). I put a 1985 gas motor and auto into a 1980 Diesel stick shift body. My wife started driving a 900S Saab before I could finish out the Volvo and then she didn't want to give up the Saab. Now she's moved on to a Saab 9-3. The Volvo has been a storage shed/parts car ever since. The body has the '85 rear installed but the pedals have not yet been installed. I could also remove the parts and cart them to NC (excluding the rear). I am motivated to clear the driveway of this car as there is a '71 142S offered to me but no place to put it.