Kev

Two options:

1. Just put the money aside until something appears

2. Find a luthier who'll build something that you do want, pop the £1200 down as a deposit and save up the balance while you wait for the build to complete...

Option 1 makes most sense, option 2 is best though, of course.

I travelled around 300/400 miles to various locations in Scotland/York/Leeds/NE to try out gear that was either in stock else where, or unique to locations. 

Took me 2 years to spend the money and I'm still not happy as the shielding/ground is still an issue (fking Charvel is doing my head in).  So I feel your pain. 

I did think about making a Custom bass. - Lambo Orange Jazz, Roasted maple 12' Radius Neck with black hardware and Delano pickups + John East Pre-amp.  (I still do...)

My list after a long time came down to: 

• Ibanez SR1100B In Pearl White
• Musicman RAY34 ASH BLACK
• Or another Warwick which I should of went for tbh, Just feels at home when playing.
• Charvel Pro-D ( lovely build, but stinky poo electronics swapped for Glock)

And now I'm quite enjoying a Musicman SUB I picked up for £200 quid.... Swings and roundabouts!

Firstly, @Ruarlbeat me to my suggestion  
Secondly, I'm with @eude- if there's nothing grabbing your attention currently, then hang on to the dosh until something crops up.
Otherwise you may end up getting something you don't gel with.... and sod's law - something you really fancy then turns up!
option 3 though, is that I'm sure I should sell something ha ha