I had a bit ofl success with the barrel band sling eye. I had a few of the Lee Enfield inner bands that looked remarkedly like a good start to barrel band sling eye so I deceded to see what it would lok like with a bit of alteration.
I found a long threaded piece that fit the LE inner band thread and with it screwed right in to touch the opposite side of the band it held tight, so I could hold it in the drill press. Then with a file, I reduced the dia of the locating screw portion to the dia of the sling stud from TOTW. I also managed to hold this in the drill press on the tapered screw threads and with a small 3 corner file was able to reduce the shank to the o/d of the screw (still leaving a shoulder to go against the band locating screw area) and will get it threaded to go into the band although I may shorten the locating screw portion to the shortest that will allow the swiver to rotate without impacting the barrel. Was probably about 2 1/2 hrs in it so not a bad way to save sending money off the NECG.

Yhe i/d of the band is almost right but these bands have 4 little ridges to facilitate fitting to the LE barrels and with a little fitting it will be move up the barrel for another few inches till it ends up half way between the end of the forestock and the muzzle.