I got hold of a Land 80 yesterday. I didn't really want to spend too much time modding the thing, first I tried the paper pull through method. For whatever reasons it didn't work for me. Either the camera or my technique.
I just so happened to have a 616 reel rolling around, and a bunch of 70mm film. So I figured why not? I drilled some holes in the body, snipped some pieces out and epoxied a bolt through the body into the spool. I then glued a wingnut onto the bolt. Sure, there are smarter ways of doing this but I don't generally plan too well the first time around on these things.
For now the glue is drying, the spool sorta turns freely but I'll have to wait for it to completely dry. I got impatient a few times and had to reglue when I separated the bolt or nut.
Here's some photos of the mod. I'm sure I'll have lightleaks. I guess I should have used a washer or two. Live and learn.