I have a 1972 Ford 4000 with the 3 cylinder diesel and a Bush Hog front loader. She had an electrical short last year that melted the battery, destroyed the regulator, instrument panel, all electrical, and all fuel lines. I've re-primed where the paint burned and started to allow rust, replaced all the lines, and ran a toggle switch straight from battery to starter for now. I have a new panel and an alternator converter kit for my next fixes.
I recommend all new members read The Getting Started Forum while they wait for the site to finish the validation process. During the validation time you may also wish to browse around the site and find the forum(s) which seem to best fit your area of interest.