Got it in one, or, actually two!! Being a 1980, everything is still very much mechanical, including the speedo, which is cable driven, and the transmission, which is mechanically shifted into gear and then uses the TV cable for its shift points. Nothing in this vehicle has to deal with a computer or sensor input except the gauges and they all use dedicated and specific sending units which have no need to send any kind of signal to a CPU. (Not looking to upgrade either. It was hard enough to do the transmission swap that got me my 700R4!! Just getting the van high enough in my garage, even with 10 foot celings, was an exercise and a half that I am not looking to repeat.)
The 84-91 steering column is still pretty much mechanical with respect to how it deals with the engine and other subsystems. As for the cruise, and intermittent wiper, the parts for the cruise are stil to be harvested, and the wiper is already resident, needing only to be moved from the dash to the plug in on the mast which is a wiring adaptation that is not hard to execute as the colors of the wires don't change.
Anyway. I did get back to the vendor that quoted me for one he has. Thing here is that he did accept my offer; it is the shipping costs that are the killer obstruction. I have gotten back to him to determine what method of shipment he would be using and what his best alternate method of payment is, because he wants to use online banking and I don't online bank, PERIOD. I have no faith that an online account of any kind is secure from a determined hack attack and the notion of having my credit and security information floating around in the cloud and available for purchase by the highest bidder is enough to ruin any number of good nights of sleep.
My bottom line here is that, if I cannot get a cheaper shipping cost, or if he/they insist on some kind of specialized electronic payment, then the deal is dead. I can do Paypal and a few other ways come to mind but if not, then not. Sucks but there it is.
CopperNick