Acrylic Glass might work
acrylic glas has been mentioned a few times in this thread but there is not a lot of information whether it could be used for dry plates. Even if I've only just began to experiment with dry plates on acrylic glass I'm already quite sure, that one can make it work. Here is an example of of Rollei liquid emulsion on a 9x12 cm dry plate developed in Rodinal 1:50 and printed with grade 0. The plate is not prepared in any way and the emulsion not hardened, so I'm sure frilling can be reduced to a very practical level. I shot some nice outdoor images today. I will keep you posted how things develop.