as for the powder coating DONT DO IT!!!!! find some one who does good electrostatic painting it will allow the paint to flex and stay with the movement of the metal due to temp changes....as far as the plastics id say patch up any damage with fiberglass then paint. the paint will bond better to the fiberglass too, with getting new plastics they are available from online dealers, but ive found it alot more affordable to look right here on THE HUBB parts are usually used but ive got some really quality stuff on here ... electrics have always been a hobby of mine. if it were me id make a new harness. all waterproof connectorswith a fair size gauged flexible wire. no problem with the sytem running of a 20A fuse, if anything you could just add in-line fuses in areas of concern... i love the idea of trying to get it back to stock , i have a 92 3TB that i would like to make mostly stock, but havent had the time or the money to put into her... good luck on the build

p.s. nothing girly about loving your bike dude, mines a pile, but i love her all the same. good times and alotta sentimental reasons im holding on to mine, deffinately not worth the time or money economically but its like a classic. they dont start out widely loved but when there scarce people will do alot to get there hands on one...