The next day I compared notes with a really sharp engineer at the office, and we both decided a metal ring with a set-screw on the side of it squishing a new flat connector against the nappy area would be the best bet for a permanent repair. The problem was that I was going to have to design & build it, and a quicker solution was preferred.
Luckily, I mentioned the problem to my buddy Kenny, who has a background in HVAC, before pulling out my drafting tools. While he agreed with the solution's premise, he advised me to not reinvent the wheel - Just ask ask for a Compressor Terminal Repair Kit at the HVAC parts store.
Excellent product - I do think whatever I might have designed/built would not have been as nice. This latest repair has been in place for about a month, and is going strong. It's great to have friends like Kenny.
No update on the Suburban A/C repair. Unless either the price of gas or refrigerant R-134a drops appreciably, it looks like my Silverado will be on point for Airstream duty.
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