Any question answered...

Araldite Fusion is the easiest glue, but for the bung it's very much 'find a man with a lathe', since steerer internal diameters are all different and you need something which is a reasonably close fit. My bloke quoted £30 for doing one to my design (chamfered edges, Swiss cheese lightening), but you could probably get one for a bit less if you simplified it, it's really just a properly sized cylinder with an M6 thread through the middle.

What are the benefits of glueing?