I am organising my Farkle plan for MY 990 and would like to ask for some advice please. I live in the tropics, so there is no need for electric hand warmers, vests, underwear, or espresso dispensers. Beyond engine needs, how much power do I have to operate aux. lights? I am interested in a Baja Design 8" LED bar that draws 42 watts under power. Thanks for your input.