Thanks for the pointers to Brusso. Bit pricey though! I thought of woodfit, but the shape is wrong - I needed the offset pivot. Thanks to all, but I went for non-mortise hinges in bright nickel finish. They blended nicely and you can't see them oln the cupboard doors...
BTW, the bathroom is now finished. it's small - 2m by 1.8m, so was a challenge to fit. Only took me 6 weeks, including replacing rotten floors, replastering after the old plaster fell off when I removed the tiles, heading off to the US for a week or so, and being away on business during the week every week. I guess 12 days work from start to finish isn't too bad? Now, can I figure out how to point to a picture?