they generally look poo unless done properly, main thing that people skmp on is the wheels which need to come out another 5 inch or so. big money to do a proper replica, ide suggest getting the prima maxi wide arch kit instead as it looks very good.
even thats gonna cost a few thousand as rear quarters have to be welded in.
all in all, IMO, its a waste of money, you're gonna spend £6-7k getting it all right, come resell time its gonna be worth bugger all and tbh noone buys modifed cars like that except once in a blue moon.
my oppinion would be keep your car, pocket the £7k and save up your no claims and buy a V6 when you can afford to