Way to go, Malcolm! I'm perhaps fortunate to have all four of them, but they are pretty tatty at this point. *Do* keep us up to date on the status of this, please, and sign me up for a new set! I check the used book sites fairly regularly and I've never seen any of them, though I don't know any of the local British sites. A lot of English booksellers do post on BookFinder, though, and I've never seen any there.