Don't make a dash purchase mate. Although you are giving it a huge amount of thought.
You know about my purchase 4 weeks ago....ED30 S/Grey 3dr 23k, 1 owner, xenons, armrest, ipod, folding mirrors, puddle lights, privvee glass & just had dealer fit cruise & sensors fitted.
All in its cost me (the wife) a tad over 14k & it is in A1 condition (edit.....was...she kerbed a wheel last Friday, they WERE all unmarked).
Good Luck