I asked a local guy, that was one of the first I ever talked to about 3D printers , if he could print up parts for a reel that had a divider in it and in a bigger diameter, and the files here is what we came up with. You could probably just leave the center divider out if needed. We made to width the same as the narrow SIG line reels because I have a good supply of the clips and they are the same as what Melvin Schutte sells also. The diameter of the reel is in the 5" range I think. I was on a kick at that time about winding up my lines and keeping them from twisting together and then unrolling easier. I'll try to attach all three files for all three parts.
Type at you later,
Dan McEntee
PS: Well, I see them, some one tell me if they are viable or not??