leave the engine and tranny bolted together, lay it on the floor for scrapping the good parts off it.

you will want to mate the new tranny and engine before installing it.

you know what, i bet you need your torque converter bolts, with the starter out, look in the hole, put a socket on the crank bolt in the balancer and turn the engine if you can still. as you turn it you'll see 3 bolts, remove them, you'll need them for the new engine.

if your engine is locked up, you'll need to buy new tc bolts.