Welcome from KY. There's plenty of questions answered already. Search for what you looking for, if you can't find it feel free to ask away.
Great group of folks here.
nice to know....will the 70's motor/regulators work in an 86? If so this would make it so much easier to build your own harness/custom switches. The switches I got like to stick in up and down position.
lay a heavy coat of citristrip on it. Then put saran wrap over it to keep it wet. Come back 24 hours later and see what you got. Can find it at walmart. Get one bottle and test if in doubt.
There is a post somewhere that shows how to upgrade the radiator using 88+'ish truck radiators. Some even included oil cooling. These were still copper/brass. @bucket @HotRodPC @89Suburban for a refresher hopefully.
I don't like plastic tanks personally, so I stuck with original on my swap...
if in doubt, run a positive and negative directly to the motor connection from a 12V battery. then reverse the wires just in case while ur there. Helps if you have an old plug to sacrifice to extend it out the door.