you'll need the compressor itself, the coils in front of the radiator, evaporator and the condenser. you'll also need to swap out your entire airbox under the dashboard with an AC unit, since they're totaly different. then you'll need the vacuum lines to make it all work. you'll need the dial things in the center console, and also I think the radiator is different, single row vs double row because of the added heat from the motor. then you'll have to see if the radiator fan is wired in, if not you'll need a relay from an AC car to turn on the fan when the AC is turned on...
sounds like a lot of work to me. just take a shower before you leave with your clothes on and get in the car, by the time u get to your destination you'll be dry.
lol. good luck.
(i just ripped out all my AC equipment... saved me like 100 lbs in loads of crap.)