As I go forward making dye-transfer prints via DCG-matrices I'm not going to be content with 4x5" prints for very long. I need to consider my options for making enlarged separation negatives at affordable prices. What makes this trickier than negs for monochromatic prints is the need for a pan-sensitive separation material. But buying 11x14"+ panchro sheet film is not a sustainable option. ($) A less expensive emulsion on a clear substrate is what I'm looking for. This will undoubtedly entail ortho, so I'll need to transfer the original color image 1:1 to a panchromatic b&w film. Then this can be enlarged. Depending on whether I'm coming from an E6 slide or a C41 neg, this will require a different procedure. Broadly, what is there that's inexpensive, available in large sizes and on a clear substrate? What is the current state of lith film? I'm not easily finding it for sale. Maco Genius Print Film is such a material, but I don't think it's available in the US. I found Efke Print Film but that is quite expensive. Working out the procedures is one thing, but at the moment I'm not sure if there's an available material that's ideal. Help! I'm curious about x-ray film which I understand can be had for cheap. Another crazy option would be to pour liquid emulsion on Photoformulary melinex. Depending on what film I find, matching the contrast and gamma characteristics of potentially 5-6 generations is going to be a feat... gulp. But where little is ventured, little is gained! Furthermore, I'm not interested in digital negatives at the moment as any means I have to produce them would be completely inferior to analog methods. Though, I admit that its convenience is enviable.