Sun Atlas Cargo ghetto homemade wide loaders - pics
Materials used were some plastic pipe from Home Depot (or maybe it was Lowe's, whatever) that was prethreaded on both ends (1/2" id I believe), end caps, and some pipe strap clamps and #8 nuts/bolts/washers. Two pieces of fence wood. Stainless hose clamps to secure the pipe from sliding laterally.
Ghetto, but effective. Provides a base to haul a box or plastic bucket.
Hope this helps out someone with a Sun.