Swapping A/C to a non A/C car... and vise-versa

I have located a 65 barracuda with the entire a/c system intact EXCEPT for the dash. I have bought it and will be removing it in the days to come to put into my 65 valiant. The firewall is intact and i will make a template from it before i cut the metal. I will share that with you. explain what all needs to be incuded in this firewall tracing/template.
also, question: do i need the alternator brackets and all the pulleys on this other car? what about the clutch type fan? I know I will overlook something. I wish there was a manual for this. maybe between the two of us we can write one.
What sources are there for working on or rebuilding these? Thanks, David