Local shop did mine. It’s oversized width and length, and 3 in deep as opposed to the 2-in on the OEM pan. My out the door cost was $400. This is mild steel not stainless.
Your best bet is to call around to some sheet metal and other fabrication shops local you and get a quote.
That torch is in the home position right now. My water capacity is 35 gallons opposed to the 15 Gallons on the oem.