Sounds very dodgy to me. Asking £1100.00 needed all that! I always thought that belts were due to be changed at 5 years or 65,000 miles whichever came first! I wouldn't be paying anymore than £700 for that as you could find it needs even more doing once you get it on a ramp.
What's the bodywork like? Price up how much everything is going to cost to get it on the road and ready to drive, Belts, discs, pads the works! Doesn't sound like its been looked after which is never a good start with a Sport!