GrumF14,
I was looking for a Balmoral boot earlier this year. I checked out all the options and found that the only one available at short notice the Grenson boot that Anthony mentioned above. JL St. James does a bespoke bal boot. The EG Shannon and Shannon II are both MTO, as far as I know, the C&J Avebury cannot be sourced, the C&J Villers is equally scarce, but its not a Bal in any case. There is another very nice model from C&J called the Higham, but it is only made for the Japanese market, so the sizes tend to be quite small. There is also a JM Weston model, I forget the name, but its has an excessive amount of brogueing (for my taste). So I settled on the Grensons. They are nice, but not as nice as sleek a last as the Shannon or the Avebury. I've only worn them twice. I found they did not look terribly well with my morning dress trousers,(the trouser legs are rather narrow), but I may wear them in the rain in winter.
If you have the time to wait and the budget I would say go for the EG Shannon, unless you want to buy a pair of UK size 10 Grensons from me!
Adagio