Looks to me like it's either had a front end bump or had it's 99/00 front end parts (Grill, Lights and Bumper) taken off and steaky 96-98 front end bits fitted in it's place.

MY98 Front End:



MY99/00 Front End:



Regarding the value of the car, it's probably worth about 1000-1200 as standard, so with the mods and if it really is in fantastic condition.. it's worth about £1750ish.


Cheers,
Grant