OK, so I ordered the vintage air kit from Laidbackrestorations during their "huge vintage air sale". They got me a really good deal, so I couldn't pass it up. A big thanks to Sarah for helping me place the order. She and Kyle seem to be on a great start to their new business.
I also ordered some SS7 bags, plates, cups, air line and fittings with schrader valves for the rear for right now. Air management will be a lot later down the line since it's such a big expense. At least the rear bags will help me pull a loaded trailer without sagging too badly. Another big thanks to Travis of ProPerformance for helping me order those parts too. I should be getting the PB LCAs and rear bag parts around the same time in August, I'm assuming.
Hopefully I won't have to wait forever to get these parts installed. I've been pretty busy with work and things around the house that the classics aren't getting a lot of attention. Just driving them around once in a while. That's always fun though.