All those old Yorks are the same with only minor differences. On Mercedes the inlet and outlet have some special valves but these are just bolted to the compressor and can be swapped from one to another.

The dryer might be a problem since some of those back then started having ports for the high and low cut-off switches built into them. But these ports can be plumbed in by any good A/C repair shop to an off the shelf dryer.

So if you are building a show car you might need to go the dealer dryer route but if you just want cold air any reputable A/C shop can deal with this for far less than three grand.