>> Bill used the iron inside tank of a hot water heater, he cut the top out of the side and welded a flat iron plate in the cut out area for cooking. <<
here are the instructions
Thanks for the link, that sounds like the same type of stove, but I did not see or missed the welding in of a top plate, so there is a flat area the full length of the stove.
Bill cut out the ‘top’ of the side of the barrel and then joined a flat piece of iron, to the two sides. A strip of about 10 or 12 inches.
LOL, it works.