Small Block & Big Block Chevy Specific - Chevy 305 A/C question

How's it going?

I have a friend with a 305 that came out of a late 1970's El Camino. He has put it inside an 84 Oldsmobile Cutlass, and I was wondering where I can get my hands on a good A/C system for the vehicle, and how easy it is to bolt it up to the new car

Please let me know,

Thanks!

TTT, anyone have any ideas?

from any 80's g body car should work

works for me.