I have just purchased a 1987 300te, the history of the past few years is a little dubious to say the least. I therefore have decided to have a major service carried out and have been quoted £450 by an independant specialist. Does this sound resonable? The estimated milage is around 130,000 as the dash wash replaced by Alan Day at 110,000 and that was 2 years ago. Many thanks for any advice.