Had a 4 x 5 trailer, added a top from a bagger system from an old lawnmower. Then installed old duct around sides, cut up an old plastic truck bedliner for a top. I just installed a chipper/shredder/vac on tongue of trailer. Just not quite finished yet, need to hook up 6" hose from chipper to bagger top and from chipper to lawnmower. Hopefully it will pick-up those nasty maple leaves and sweet gum balls from my yard.