I guess all you can do is see if any holders come up on ebay or Pacific Rim Camera, or see if a graflex back will fit, then a rollholder, then film....... I purchased a ground glass back and holders for the Kodak 3A, cuz I had, by mistake, got 200 ft of 3 5/8 x too thick- and compounded that mistake by seeing that 122 film isn't the same width as postcard cut film, so that won't work and the Kodak plate/film holders are very much thinner than graphic/graflex anyway. I wish you the best of luck
regards
Ed