Quote:

Mainly needs a new evaporator and discharge line/muffler and hose

This is experience talking. I have restored MANY 60's A/C cars and you NEED the lines with the large fittings (discharge). You may have to hit the salvage yards for these items. The internal components (condensor, heater core, etc.) are repopped. What car/motor are you working on? I may have some extra parts or can possibly direct you. Make sure you recondition or get new all the parts (heater control valve, dryer) so you don't have problems down the line. Is this an R12 or 134 system?