thats a really nice looking 180 your thinking bout buying mate, got a Mk1 5 door 180 in Trophy Blue, its a 52 plate bought it new and love it.
Here's the links to Stamfords very detailed "Thinking of Buying a ZS" guides:-
Its well worth a read...
http://www.themgzs.co.uk/vb/showthread.php?t=11254
http://www.themgzs.co.uk/vb/showthread.php?t=11255
http://www.themgzs.co.uk/vb/showthread.php?t=11326