You can do most of that yourself with your eyes closed! EBC discs are £39 each for a C70, pads £110 for a full set. Include fluids and that's saved you £240. A recon power-steering pump (from a reputable source) should be sub-£150 and fitting is (usually) pretty simple. Leave the spring, get a tyre from someone with real prices and you should get change from a grand even with the dealer doing the service. Bit of graft, I know, but you'll feel better for doing it.
Good luck,
Ali
Front Discs and Pads fitted: 266.00
Rear Discs and Pads fitted: 243.00
Power steering pump fitted: 505.88
Rear Coil Spring fitted: 107.00
Antenna Ring fitted: 112.00
New rear tyre: 125.00