Budget depends on the car to be honest. Obviously as cheap as possible! And i dont mind if its not a minter. Any figure I have can always be stretched for the right one. Any jobs like belt and brakes will be taken into consideration, I would do them myself with the right tools.
Of course, you're right, it's just getting the balance of condition and cost. It would be wrong of me to get a show car as I won't keep up the detailing and polishing, I prefer driving!
The cam belt needs a special tool specific to the FRP.
Also new front discs are around the £400 mark and are unuseable after 26mm. You will spend over £1000 sorting brakes if there have not been done and allow £600 for the cambelt. Tools go for around £150.