Mine is a '94 300tdi and it has had timing belt issues but is good now thanks to Bruce Davis motorworks and Land Rover.
All I would say is if you buy one of the earlier 300tdi's get the timing belt replaced as soon as possible and have a look at the old one to see if there is any wear on the belt. Then you'll know where you stand. I've made a small hole in the timing cover beside the air con compressor so I can see the belt.
Steve.

