Alistair, do you (or anybody else) know who owns the rights to the Collector catalogue? Even better, do you know where the master tapes are? It might be an interesting project to assemble some CD reissues.

It should be noted that the technical quality on some of those old EPs is quite dreadful. I recently listened to a couple, and they have a huge amount of tape hiss, even for the late 1950s.