I want to start on a new tandem axle trailer. i need the dimensions 6x15. I know odd size but its only to carry atvs. I need help in trying to get the trailer down to 1000lbs or less. Anyone have any ideas? Oh and the tires are 15" and the axles are 3500lb. I need it that light because i dont have a big ass kicker truck so i have to watch how heavy it is.