I have a 2008 gmc 3500 long box and am looking for a sled deck. I am thinking aluinum but also like the black ones as it would look good on my black truck. Looking to buy used, never had one before. Thinking adjustable sides for sure. Going to haul my brute 750 and my kids kawasaki 50 quad. Am i going to have a problem because my full size quad weighs way more than my sons little quad?? What is a good deck to look for and options that i may need. I will only be hauling quads, no sleds and will be hauling my travel trailer behind. What is a fair price to pay for used decks??