Lol ud be stepping on awks toes, he has a diy for your own or sells for ppl not handy but to make ur own to sell is punching the moderator of the site your a member of in the gut...
nope, not at all, this is 'murica, the land of free enterprise.
oh wait, he's not 'murican, and this is the internet
doubt if he can ship them across the pond for cheaper than I can sale them here.
so for the record, since you asked about selling price, here's mine, I get $35 shipped w/ exhaust plug included.
oh, and I do use a 0-15 psi gauge
but you have to provide your own air source, no fancy sphygmomanometer bulb
do your thang blasterman, but don't expect to get rich.
I just do it so everyone has access to them
it costs you UK bro's an extra $27 for me to ship them over there.
so anything less than $62 and you've got a winner