Wecome I'm new to this fourm all so. Wiring for motors should be 6ga. motors a 50 to 60 amp fuse on each motor should be fine. If you run a switch panal us 8ga to feed that that will be more then enough. Batterys I us two type 27 that has to do with space to store batterys use the biggest you...
Divide watts by volts to give you amps ie: 30watts divided by 12volts = 2.5amps remember you don't want to put all your eggs in one basket. You my want to watch your wire size all so under sizing wires will cause higher amps .
Thanks guys for the welcome I have issues with pictures I'm on other sites and have trouble adding pictures to my posts , If any one has and easy way of doing this I would love to share my mod on my 30 year old 14' Lowes Jon. It's a beautiful thing. :postpics: