I don not think it is a Mark King but is is so beautiful.  
 
http://www.ebay.com/itm/1996-Alembic-Mark-King-Custom-V-5-string-bass-/200730660153?pt=Guitar&hash=item2ebc7acd39
 
Is that top figured Koa?
 
VMG

Looks like the original MK-style body, but otherwise a Europa in terms of electronics, purpleheart neck stringers, and no back laminate. Nice bass, but a little pricey in this market, IMO.
 
-bob

fjj, if I had to guess, I'd say flame koa top and faces, mahogany back, deluxe maple/purpleheart neck, Omega, and Europa electronics.  I'd say MK as the neck pickup is backed towards the bridge, with that gap to the truss rod cover.  Gorgeous flame koa, I'd think it would be a very smooth sounding axe with the koa/mahogany.
 
IF the miles on it are as low as he says, not a bad price, but it could be a bit better.
 
J o e y