Mike Walsh at the Bass Merchant (makes Iceni Zoot basses) is based in Witham, Essex (CM7). He will endeavour to get what you're after, he's got a superb high end selection of amps, cabs and combos (Markbass, EBS, Ampeg etc) and a fair selection of basses - recently he sold me a superb Warwick Streamer Stage 1 5 string w/ Aero pups & East pre at a very reasonable price!
WELL WORTH A VISIT! In my experience he can pretty much beat any price. He gave me great deals on MB gear.