Just to give you some more to think about that grounding block next to your battery switch,check out those connections,you got the same cheap ring terminals i had,all my grounds are corroded and yours look like mine,I'm running all new wire and heat shrink ring terminals ,should be good for another ten years or so.
I hear ya on that Did find a new tallent I didn't know I had tho.........the ole one haned zip tie connection.
Boys, don't sell yourselves short. You've shown good work. Pretty is last, and is nothing but time, and black tie-wraps.....Keep up the good work.