My Father in law has this for sale.
He had it custom built out of Stainless. I believe it's 3/16" thick. Not sure of the grade. He is a licensed HVAC and plumbed the gas himself. It's well built.
I took the measurements of the pan, and wrote them down, but have lost the measurements. I believe the bottom is 24 inches wide by 48" long??? He said it would hold about 25-30 gallons. He used it once to boil some water...other than that I don't think it's been used. It has handles on both ends, so two people can lift it.
Asking 500.00. Stainless is worth quite a lot these day.