This is going to be a reel for camera testing. I ended up making cardboard splitreels and then threw that on a pen with the film, 300', in between. Then I put a daylight reel in the camera and just rewound it using the rewind crank on my bolex. It wasn't until after that I realized your crank turn references weren't referencing the bolex. But ah well, it worked. Then I just hand wound the film onto another daylight spool so that it would line up. I definitely ended up with less than 100' on the spool, but it will be fine for testing purposes.
Now I just need my light meter to come in.