Well, bestboatwire.com and some EBay purchases came through with some wiring updates. I ordered clear heat shrink with the wire and made labels for the ends. While I upgraded some of the wiring, I stayed with the 2 gauge battery cables. I used 6 gauge for the glow plugs, 12v bus, and the smaller ground wires (battery to rad. support, rad. support to frame). I used 4 gauge from the alternators to the batteries or ground. Installed a terminal fuse block for the 12v needs and a individual terminal fuse for the 24v bus. I also installed military battery clamps to get rid of the crimped lead ends. I'm happy with the results. Still need batteries and hold downs but electrically we are getting there. I also pulled a 12v wire into the cab to feed the voltmeter, switch, usb's and cigarette lighter I added in the ashtray spot. Need to gut DUVAC wiring but it can wait!