Drivetrain removal/installation question

[Tomahawk30]

So I'm thinking about doing an engine / transmission swap in my 72 Jimmy 4x4. It currently has a 350/th350/np205. The th350 is pretty well worn out, so today I picked up an identical rebuilt th350/np205 with a heavy duty shift kit to swap in. My son's project 69 shortbed has a 383 stroker engine that, in my opinion, is way too much engine for his first rig! I'm debating pulling the 383, mating it up to the new th350/np205, and dropping the whole thing in the Jimmy. The healthy 350 in the Jimmy would then go back in his truck with his existing manual transmission.

In my 65 Impala (the only drivetrain install I've done) I had a ton of room to work and didn't have to disassemble anything to install the 350/powerglide together. The engine compartment on the 67-72 trucks seems considerably smaller... How much disassembly would I have to do to pull the small block, transmission, and transfer case out of the Jimmy as one unit?