I guess i am lucky in some ways. Theres about 6 A bodies left in my local boneyard. All are A/C cars but missing a lot of stuff. One is i think a sears cool pak slant 6 car that may have used a york compressor. Engines ling gone, brackets and hoses are hanging. The hoses went thru the firewall where i circled in the picture with rubber grommets. Ok for a granny moredoor but not for a muscle car. I also noticed that parts of the factory A/C heater box were modded Non A/C parts. Like the heater box cover with the vent door being the same part, with a vacuum solenoid added to it to move an air door, and i think the heater core was the same for non a/c and a/c cars. That being said i think vintage air makes a 2 line bulkhead connector fitting. If theres enough room in this location to run the lines, I may go with one of those bulkhead fittings and two 90° fittings coming out of the firewall to run the lines along the firewall and along the inner fender, or 90° fitting / bulkhead connectors I will take some research pix next time i hit the junkyard and try to mimic the factory setup as much as possible.