Well, it's official. I'm keeping the truck 6v, unless I absolutely HAVE TO change it over to 12v. Granted, yes I'll probably have to go through most of the wiring, but I'll probably be saving money because at least 1/2 if not more of the electrical system is in good condition, and the rest may or may not be due just to some bad connections or a burnt light bulb.
Trev, I just tested my light since it's dark here and it sure is bright. My light switch is a little sloppy and you have to mess with it to get the light and the dash lights on but I've got the hang of it and it works for now. If you don't mind ordering your bulbs when they burn out instead of going to Wally world and getting them there I think it's easier and probably cheaper just to leave it 6v, but what do I know, I just started this. But anyway, I'm satisfied with 6v for now.
