I have recently bought several 8x10 sheet film hangers and one rubber tank. Has anyone here built a 3-5 slot tank (similar idea as as a"Nova" tank except for sh eet film (maybe 2-3 hangers)? Seems like it would be a good idea as you could si ze the tank for the number of sheets you wanted to process at one time on a one shot basis (minimizing the volume of chemicals used). Or am I missing something? Was thinking of using plexiglass, any idea as what to use for glueing the piece s together?.