I am interested in adapting a 7x11 wooden film holder to accept cut sheet film so that I can shoot triptychs & diptychs. Using one sheet of film and cutting it down after exposure and development is not really an option as there will be variations of exposure etc. within the various elements. Alignment is important so just popping the sheets in with double sided tape may be too hit-or-miss. I would appreciate any suggestions for a method of doing this type of holder hack and any sources for small parts that may be necessary.