[SiriusHardware]

I'm afraid traditional model shops are becoming an endangered species these days - I was thinking maybe I should try a horologist / clock and watch specialist, but they are also rather rare now. I doubt whether many watch repair centres can do much more than change a battery or a strap nowadays, let alone supply precision miniature nuts and bolts in a range of sizes.

Herald, I'll probably go for the first ones you pointed out - I can always file the heads to a lower profile. Thanks again for looking.