I have been offered a 1992 defender 200tdi rebuilt on a galv chassis[to county spec] with 60,000 miles on the original engine .the condition is excellent but the price seems a little high at £7500.
From your above description I'd say 6.5k is a good price, 7k alright and 7.5k it would have to be near mint. 60k miles and galv chassis are good selling points!