Want to Buy WTB Graflex RB SLR 2 X 3 with roll film back

Looking for a Graflex RB 2 X 3 with a 2 X 3 Graflex roll film back. I do not need a lens. Camera should be in good shape and in good working order. I have a number of Graflex RB SLR's in 4 X 5 and 3 X 4 in varying degrees of functionality and maybe we could do a trade.