Do you have a friendly independent garage near you? If so, take it along and ask the opinion of them. It would be worth you paying someone to have a look over it and give you and honest opinion.
This would eliminate the replacement on unnecessary parts and the cost involved in this. I would avoid the chains (kwik fat, halfrauds etc etc) and ask friends who they use. There is a thread on here with a list of garages that people use.
Where are you in the country?
04 plate Ink Blue 1.8 Duratec Ghia. Mods so far, club sticker on rear window and stereo upgrade, 4Q sticker on bootlid and Smurf hanging from rear bumper.
More mods to come as i\'m allowed to.