I played around with the idea, which I called faux-ambrotype. Litho or reproduction films work well, I used primarily (very) expired and somewhat fogged ORWO films (FU/FP/FN types). I found that phenidone or phenidone-rich developers work well, think POTA or
XR-1, which also give you a higher EI. I developed the sheets in a tray at 30C for what I recall were extensive periods of time, which yielded positives that could be viewed without a black backing due to the high buildup of density. In fact, I could only scan the images in reflective mode on a flatbed and I never attempted optical printing. I did find it works better for low-key photos due to the loss of separation in the highlights.
I'll look around for examples.