Installing that bell and transmission seperately makes life a LOT easier, trust me. If you use the alignment tool to align the clutch and flywheel, you should be able to get under there and just bench press the trans in all the way. It only ways maybe 75 pounds or higher. also....
-pull the center console. No matter what anyone says, you WILL NOT get that aod shifter out without pulling the center console. I bent my aod shifter bracketry under neith to fit through the trans tunnel hole better
-You can re use the aod flexplate bolts to bolt the flywheel to the crank. HOWEVER, you will need to locate 6 pressure plate bolts to bolt the pressure plate to the flywheel. be sure they are from an 86+
-do NOT use the adjustable clutch cable. Use ONLY an oem non adjustable clutch cable, and use that with a firewall adjuster. Read my article
http://50stangs.com/techarticles/clutchcableadjustment.html
it will tell you EVERYTHING about clutch adjustments
-the aod driveshaft yoke has a balancer on it that the stock t5's do not. Because of this balancer, the aod shaft is about an inch longer. In our case, the aod shaft WOULD NOT fit with our t5 conversion. you should source out a t5 driveshaft, or at least the yoke, if you don't there is a slight chance that aod shaft won't fit.
-you'll need from autozone a couple of plugs to plug off the trans coolant lines from the radiator.
save yourself PLENTY of time, as it may take two complete weekends to do this conversion.