Rewired w/ an E Z kit, more like a chevy w/ mopar ends. N ever noticed the headlight switch getting hot, haven't used the headlights much tho- will watch.
I don’t have any experience with the E Z kit so I can’t say if that solves the issue. Definitely let us know what you find out. I would think a newer wiring kit would have taken the down falls of the previous electrical system and correct them.