I just ran across this thread...I've done a few vehicles using the classic auto air components...Some are spot on and others need mods/swapped out....Take your time and let them help design your system and make them get the switch right...A phone call is usually all it takes to get the ball rolling in the direction you need...Not siding with them but how would they know what you need for a 66 wagon with a six pack ???

The AC fittings are pretty much standardized so if you tell them what you need to do as far as routing they will suggest what fittings are available to swap out...Depending on the model the lines are'nt routed the most appealing way and I've modded/upgraded quite a few times to get them where I need them to be...They've always been willing to work with me if I tell them what I want/expect from the custom system...