Erratic Gauges

Just curious, have you disconnected the ground to the wiper switch?

I have not gotten a chance yet... a major issue with this situation is that the car is 3.5 hrs away and I really only have about a weekend a month to get over there and get work done on this and 3 other vehicles.

Not ideal, but its what I have to deal with. Which is why I would like to get a list of things to try in hopes that one may work out and would be able to get this car back together so I can put more miles on the thing.