How about using a SS or plastic clip (used for hanging a whole roll of film to dry) and developing in a small tank (like a two-35mm roll developing tank). The other end of the clip could be on a short rod (or wood skewer or chopstick) that would keep the film suspended in the tank. Basically using the same method as 4x5 film in SS hangers.
Use several tanks dev -- stop -- fixer -- wash
PS -- Use just one tooth of the clip on a corner of the film