In Keith's video ASSEMBLING A HIGH QUALITY MODEL STEAM PLANT - PART #16 he discusses a set of BA wrenches that are available from Blackgates.
Living in the U.S.A. I have acquired a number of English Steam Projects. To date I have not found an American supplier that could help me with the BA stuff.
So I ordered the ones in the video. I was contacted by
Jacquie from Blackgates the next day and thru the wonder of the internet they should be here this week. Total cost in the USA with shipping was $14.00.
I've found having stuff shipped from the UK to be pretty reasonable price wise. Back in my earlier board game days (15-20 years ago) I often bought games in the USA, and shipping in those days was pretty cheap too. I've no idea why shipping stuff out of the USA to Australia is so expensive now. But in the early naughties, the price really jumped.