easy fella , you may be ably to get the rear lights from fiesta center in norwich but dont hold me to that , spot lights are easy to do thee are a few screws holding the spots in n each side if you undo these from the front they will come out and give you access to the bulbs ,
as for exhuasts mongoose is far better than ashley as ashley do sound nice but are a real crap fit , hope this heps mate ,
also im breakin a black 16v 2i if you need any bits and im not far from you as you prob know