I mentioned a few months back my foolishness with A/C in my rambler... trying to use a factory evap unit with modern stuff. [The problem was a screwed up evap unit; installation and access were so annoying I yanked it out].
Well I'd bought an under-dash evap unit, nice O-ring fittings and calibrated for H134a, thoguht I'd start to install it today, at least get it mounted under the dash.
I ended up almost completing it, only the wiring (simple) and purge/charge is left.
The under-dash evap unit is made by VintageAir, though I got it from another vendor. It's really old-fashioned looking, which is perfect for the Rambler. Black, with chromed plastic vents.
The Rambler's A/C hose firewall knockouts are just above the gas pedal, but most aftermarket A/C assumes it's on the right. I only had 90-degree #10 (sunction side) fittings on hand so I had to do a 180 with the suction hose, but other than the added length it worked out just fine. I can even take the evap down, with two 1/4-20 bolts, and swing it out of the way to get under the dash without disconnecting the hoses.
I took photos, not that mounting the evap unit under the dash is any big deal. I'll make a webpage about the install later. Fits fine. I hope to get it charged the end of this week.