Hey I recently picked up a 1966 raven that was highly modified, while looking at the Apache models to figure out what it was (thought it was an eagle) I ran across your thread and to my surprise it’s one that was built by you (squirrel)
Did you ever get your ceiling-mount storage box to market? I'm starting to design / fab my interior storage and I'm either running something into that space or doing something like you did. Might be a lot easier to buy yours.