I have a 95 F150 XLT shortbox with a single tank. The bed is in pretty bad shape and I was looking into getting one from the junk yard. They have a shortbox bed with dual tanks. Id like to have dual tanks which works out great. What is everything i would need to do this conversion. Is all the wiring all ready there for it underneath and in the cab where the switch goes> Any help would be awesome! Thanks guys!