116/616 is bigger then 120 so you can't just respool. Somebody was selling an "adapter" that fit underneat the 120 spool and above it. That let you use 120 film in 116 cameras. I don't think it was very complicated.

OTOH you had some 116 spools and some backing paper you could buy 70mm film and respool that. You'll need to look for an old film tank that handles 116.