If you get one of the special, rare, non-rotten ones, you will only have to blink, and it will turn into a rotten one...
(at £1k, i suspect you will be looking at degrees of rot, than rot free - some areas are easier / cheaper to sort than others)
ps. we drive a 300tdi disco.... at the moment none of its rotten, but im sure it will be by next mot time, no matter what i do (within reason!)