On ebay nice looking but it's not an S1 nor an S2 Small Scale Stanley Clarke model:
2004 Alembic Custom Mark King Signature Deluxe 5-String Bass. starting bid US $4,200.00. Buy it US $4,500.00
Description:
- Absolutely Immaculate Condition!!
- The FIRST 5-String M.K.S.D. (in 5A Quilted Maple) EVER made by Alembic in the new Balance-K Design. (Slightly Better Weight With Better Neck/Body Balance Than Standard Point Design) Could Become Very Collectible!! - Serial Number: 04MK13270
- 5 A Grade Quilted Maple Finish
- Signature Electronics
- Continuous Wood Backplate
- 5 Pc. Laminated Body With Solid Mahogany Core
- Omega Cut
- 34 Scale With Incredibly Long Sustaining Low B String
- Width At The Nut is: 1-7/8 Width At The 24th Fret Is: 3.00
- Gold Alembic Hardware
- High Gloss Body Finish, Satin Neck Finish
- 7 Piece Maple - Purple Heart Neck
- Ebony fingerboard With Mother Of Pearl Inlay
- Extremely Low Action - Fitted With A Brand New Set Of DR High Beams (45-125)
- Dual Trussrods
- Original case included is in PERFECT shape
- New list is $9,200.00 - Average Price If Bought New From An Alembic Dealer Ranges $7,000.00 to 8,000.00
See link and pics.
http://cgi.ebay.com/ALEMBIC-Custom-Mark-King-Sig-Deluxe-5-String-Bass_W0QQitemZ7403546925QQcategoryZ4713QQrdZ1QQcmdZViewItem 
