One set of the rare Weber IDS set for the 1967 or 1968 911S is offered at $4,500.00 including new gaskets, not shipping. This set has been disassembled, cleaned, and reassembled by Paul Abbott at Performance Oriented, where they presently reside. He is a premiere Weber rebuilding shop in the US, and is capable of matching these carbs to modifications made to your S engine. Email me at walteromueller@comcast.net for pictures or call me at cell# 313-719-9973. You may call Paul Abbott at 530-520-5816.