Beer keg grill it was.
Got one of those abrasive blades and went to work.
Wore a face shield, ear plugs and a NIOSH-95 mask.....cutting is very loud, grit flies everywhere and it's not for your lungs.
Bought a set of welding gloves also.
Used bolt on hinges and expanded metal for the grate.
Could not find my picture of it but it looked similar to this rustic rascal.
My next effort was about a year later and just a rectangular box made from 1/8" metal on a pipe stand...again.