Only as little work done, as other stuff got in the way. But the utility (propane, electricity) storage shelf on the tongue, holding the propane and batteries pack, is complete. A fun project that allowed time to: 1) teach, learn and practice welding, and  2) justify purchase of more tools. The result:

The rings were especially entertaining, requiring (the purchase of an oxyacetylene outfit and) heating and bending bar stock around a form consisting of a Classic Mini brake drum. The rings will serve as cradles four propane tanks. The battery box will sit in between and can be seen in the background next to the kerosene heater.