Mike,
There is a place in Lymington on the Gordleton Mill Industrial Estate (Hannah Way) that should do everything that you need. Its a Warehouse that mass produces landing and keepnets but also has masses of netting and I think you can also get stainless rings from there aswel. (frames, anchore rings etc) If anyone else needs any gear they do massive sea boat nets with handles for about a fiver, My carp net that would cost me about 80 squid (42 inch frame, bow loc carbon handle etc) done me for 8 quid. I cant remember the name of it but its next door to Plumb Base. Il put the name of it 2moz for any1 interested.
Dan