I'd be OK to pay postage ontop of a price you'd like. I'm not sure I'll bump into Steve soon, as we are approaching 'caravan open season' and we are usually down at the in-laws caravan every weekend.
Let me know what you want for them, plus postage. Happy to pay that. The 7 speed cassettes use the same sprockets as 8 speed, I've got hundreds of shiny Dura Ace spacers, and am looking to move my
Ribble to 8 speed from 7. My Ribble is currently using some older Dura Ace Uniglide sprockets, which I'd rather save for my best bike as that only accepts Uniglide (I have to order sprockets from the US).