I had one many years ago, paid 150 quid for it in farm sale. The engine was seized but I knew of a new complete RR B40 engine in a sealed box, bought that for 25 quid and put the two together. That was 20 years ago mind, and I kept it for just under 5 years. The only major problem was the rear dif which I understand is a weak point. Fun to drive, but don't get carried away with the 5 reverse gears :-)
Mike