Mike, The seller stated that he wants to keep the set together for now. Have you checked eBay, abebooks.com, alibris.com, and biblio.com for the missing
I also have a partial set (#381) of the same Autograph Edition of 750 sets. I am missing # 3, 6, 30, 31,32,33, and 34. Any ideas on how to obtain missing books
For those who are interested, I have scanned George Locke's catalog of Sabatini material. The pdf can be found in the files section in the folder, "Ferret