I have these doubles, excellent pressings. I somehow missed the 10 cd set. But I do have most of CBs music on a mish mash of albums on various issues as well as a couple of cds. I could do with a nice set but I would want the alternates.
Yes, those came out as Emarcy 2LP sets I think, imported here from the US. I bought one of them from Mole Jazz's deletion rack 'back in the day'. Good sound, I agree.