Bakelite: Are you able to fit a thorn onto the outside the leftover piece? (If you can't go in.) A thin thorn will glue to the outside of the cantilever and works well. Unnderstanding that the original cantilevers are very tiny, you have to do it in such a way that it doesn't make it unusable. Crazy Glue is one of those types of glue that can be used many different ways, but techniques have to be practiced and experienced. Some glue dries to fast, and slow glue requires a holding jig.
I am actually using Crazy Glue to make makeshift belts whole I wait to make an order. Polyurethane is rock stable, but has certain break in times and service life. With a rubber belt I just have to dab one edge and mate the two edges (practice with old belts). I have connected an A/T fine line (and a seriously small stylus) to a generic replacement stylus cantilever (nice thing about Shures) by dabbing a thorn with CA glue, then touching it to the tip. With about an 1/8 inch thorn length I fit it into the cantilever of a Shure. So in other words to save myself some anguish I connected the extremely fine stylus to a Shure. If you wanted to keep your Goldring alive, I wouldn't hesitate to put the tip of a generic replacement stylus on it. Believe it or not, stylus tips are not that different from each other (they still have the differences in "tight HF detail"), but cantilevers, compliances, coils, etc are. I find that even cutting the tip of a generic replacement stylus about 1/3 from the tip, then connecting it with a thin thorn, it will sound quite good. It just needs that "relief" from the shaft holding it. The the cantilever is still part of the pickup, and it will pickup what the independent stylus tip is sending it.
A fine line's lack of hazziness can be enjoyed with a spherical with this "decoupled" cantilever, you just won't get the highest frequency detail. With a well built spherical, the highest frequencies wil not be physically touched. A fine line WILL be physically touching every HF modulation, hence the reason the manufacturer can't get away with poor cantilevers on a FL.
Glues used for "testing" (such as removeable white glue) that won't damage the cartridge have been discussed earlier, thankfully.
I would suggest practicing the DIY stylus craft with Shures and A/T's that can be found at 2nd hand stores, and generic replacement styli, before risking an expensive MC. The reason is that you will learn about the end result sounds, such as cantilever types and tip sizes, and why different tip sizes were invented, and how to select a different tip size. Each stylus size has its own purpose, from record wear playback, home playback to playback in public arenas. And you'll know the stylus shape and size just by hearing it. When there is no cantilever colorations, the image shape is proportional to the stylus profile. (Sperical vs line?)
DO NOT GET SUPER GLUE ON THE COMPLIANCE. Contact cement is a bit nore forgiving as well and it gets tight, but don't get it on the compliance either.