Not being a mechanic I could only summise the following:
Rad and Stat = 1.5 hours (with the right tool for the Viscous Fan and it comes off without a struggle)
Service = 2-2.5 hours if you include the Gearbox oil and filter
Door Locks = 1.25 hours per door (never done it, but it could be fiddly)
Total Hours = 7.5 (1 Day or so) at a guessed average of £55 p/h = £412.50
New Rad must be close to a ton (£100) plus Stat £15 ish....Locks £65 each....oils, Filter and fluids (£60-75) Total £320
Grand total = £732.50 so £600 is fair in my eyes....
(THESE FIGURES ARE GUESSTIMATES FROM THE TOP OF MY HEAD AND ARE NO DOUBT WRONG SO DON'T HAVE A POP - ALRIGHT..!!!)