My daughter is thinking of buying an 04-plate 1.8 Ford Focus Zetec Estate with about 54,000 miles on the clock, with full service history from the supplying Ford main dealer. The non-franchised local dealer is asking £4500 and has come down to £4200 but we think it's worth about £3300. It's a decent colour, gunmetal. Are we in the right area price-wise? Anything to watch for? We think it's due a belt change.