Steve & Tom,
I have a virgin magnesium Hell Razor C-D pan available. It is 17 1/8" long. There are no tie down lugs like modern pans and it is designed for a 1 3/4" spinner like the original. It's yours for $20 including shipping. Not sure if a Rossi will fit but a McCoy will with a bit of grinding. It was Doolings and McCoy's in the Hell Razor days.
Jim Rhoades