tranny swap

[scooby3242]

Im wanting to swap my saginaw 3 speed out for a th350. I have a 71 chevy long bed with a 350 motor. I need to know what parts I need. Here is what I have come up with so far....
(1)Tranny...th350 with 6 inch tail (should swap out with out any driveshaft issues right?)
(2) auto transmission cross bar (3)transmission mounts (4) a shifter (5) kick down cable (6) transmission cooler (no idea which one, too many options.
(7) torque converter ( not sure which one, stock one would be fine, maybe 2000 stall) (8) and a flywheel (are all flywheels the same, i think there were one and two piece ones, what is the difference)