I went with Skaug for the utility bed. They're in southern California. Prices seemed the same at the places I looked, and Alaskan Campers said Skaugs fit their campers the best, so I went with them.
My memory is swiss cheese and for the life of me can't remember the weight of the bed. Somewhere around here is a piece of paper where I subtracted the weight of the original bed that was getting removed and added the utility bed weight. That said I know my rig is within specs because I drove everyone crazy insisting on the exact numbers. The Ford dealership in particular.