Thanks, everybody. Much food for thought as always. I was intending to use the negatives for two purposes, the first to make cyanotypes and the second to sandwich with homemade 5X4 texture screens to create a distressed looking print. However I guess the second can be achieved by double exposure. I'll try both ways. The reason for choosing ortho was to enable development by inspection but if I don't get a satisfactory result I'll try panchro as suggested.

Bill