I was watching a video on a 1994 Ranger having all brand new A/C system components installed and noticed the high side port was within a foot of the compressor and a foot of the condenser in the hose. So that's where I'll put mine. My hose will also be very short for that connection. Probably about the same length as the 94 Ranger's hose is. Although that truck also had some sort of inline filter/muffler in that location with a port for a high pressure switch, which I won't be using since The 87 Ranger and the 92 Thunderbird didn't use a high pressure switch as far as I can tell. Those are my donor vehicles..
94 Ranger hose:
Also posting this here for future use.. My low side port on my accumulator seems to be 7/16" x 20 - which will likely require an adapter (to 13mm) to be hooked up to quick detach gauge sets. I think I'll go with a 16mm high side port splice fitting in the middle of the condenser to compressor hose.
EDIT:
I believe I finally have ALL of my hose ends and fitting figured out now. As well as the R134a adapter for the low side. All of them are added to various carts online, mainly Ebay from one seller with great deals. A few things are far cheaper on RockAuto.
ALL of them were an exercise in patience to find the sizes of the hose ends, thread size and pitch, springlock sizes, etc..
The condenser is supposed to be here tomorrow, so if I can get it in place and still have room for the radiator and mechanical fan, then I'll be going forward with this conversion at full speed.