Our district rock farm manager was going to retire. I started scrounging around our bone yard. In a well hidden area of my plant I built him a BBQ pit out of discarded rock plant parts. Conveyor parts, electric motor accessories, mobile equipment parts, whatever I could figger out a use for.
He got a big kick out of it and it moved to Oregon with him when he retired. Lots of the Santa Maria Style pits around here at one time were built with similar materials from our oil patch. Fred, if you do go to build one, if you have a rock farm nearby, hit them up and see if you can get some used screen material for the grill itself.