Here’s a set I almost never see available for sale (and for many years I have had a continuous search for it going through ABEBooks). But it’s a bit out of my price range, so I’m passing it on to you.
The Survey of Western Palestine, Col. Sir Charles Warren; Capt. Claude Reignier Conder 1881, Published for the committee of the Palestine Exploration Fund (PEF), 1881-1889 – First Edition (according to bibliographic resources). A set of six cloth folios, being 11. Bookseller: Orr Hirschauge, Tel-Aviv Price: US$ 4500.00
View or Order this Book:
http://www.abebooks.com/servlet/ListingDetails?bi=1039913148&cm_la=want
Of course, if you just want the maps, in super high-resolution, you can get those on CD for $35. Or you can get the Index for free. Archive Books has the reprint set available for £2,995 ($5,966).