Took the gauge cluster out today. Problem seems to be found (I hope!). I found a spot with some crossed wires. One is thick and yellow (start) one is thick and brown (one of the ignitions?) and one is blue with a white tracer (gauge cluster). Seems like it involves all the messed up circuits to me! I cut out the bad sections, will put in new wires (probably with crimped connectors instead of trying to solder in the car, which i'm bad at). Hopefully this was it!