I bought mine from him at the Doncaster show quite a few years back, but I suspect they won’t have a stall at any of the shows that are left now. I do find it useful, but it’s not the be-all and end-all of tooling, and if I had to go to a lot of effort to get another, I don’t think I would bother.
You could always find someone going there on holiday to visit family and have things delivered to their relatives prior to the trip. They then bring it back, hopefully avoiding Customs 🙂
Being in a club of some sort, not necessarily model engineering, helps as you get a larger selection of potential couriers…
Rob