Are they going to be clear fronts? Hot tip. If it's not too late, three 1/2" wide parallel velcro (hook) strips on the opaque side will allow them to be turned into modular see-through organizers that can atached to along 'stretcher' that can be rolled up. I'm desperate for a sensible modular multi-category organizer, that might be a great start huh?
Something like this but that can be unrolled flat onto a horizontal surface..