Good news, short term update.
Got the cruise working!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I hated to do it, but it turned out easy and quick to just mount the magnet pick up instead of tieing into the stock VSS. Cruise kicks butt!
It it 100% hidden under the dash and uses the stock GM cruise switch which I blended right into the custom fit 1981 Vette tilt tele column.
The a/c was working okay, but at speed would get to about 55 at the vent. It would start out much colder and the car was comfortable, but nothing to bragg about. In the beginning the heat switch was bad causing an open circuit that was pooring the heat on making the a/c impossible to cool the car. The guys at VA have been great and have given suggestions to follow. The first thing we did was flip the heater hoses.
Long story short, we found out the switch was bad but I didn't re-flip the hoses. I was up against two problems. Once the RPM came up the reversed hoses caused the heater valve to be bypassed and run hot air out of the box on top of the a/c. Got that fixed yesterday morning leading to the final problem.
Turns out I was also a tad low on a/c charge. I may have a slight leak in one of my connections so I shot in some red dye and am checking all of that now. VA is also sending me a new a/c switch as the one I have failed in one position and can't be turned off. He said that happens once in a while.
So, now a few more tweaks and a few more miles before the big road trip!
Oh...the starter is failing now too. I had it redone by the same guy at the same time that did the alternator. Picking up another starter today. Once it gets hot it does not want to engage.