Hello, Being a Statesider I have not a clue how things are viewed in Ireland. I am pretty sure that importation is legal there? I know of a fellow from Ireland who is dealing in the Chinese diesels if you have any interest that way. As for HP the 12/2 is supposably a 12HP engine at 650 RPM. In theory it would produce the same KW on a generator setup as a 12/1 the differance being in the drive ratio to the head. The twins are not without thier problems, camshafts and drives can be troulesome but I would stake my power needs on a twin at 650 RPM over a 1000 RPM variant any day, it's just not a 1000 RPM design in my opinion. The Brittish stopped at 800 RPM I think for good reason. The original 1000 RPM engines were an entirely differant design, what we now know as JP engines.