Cool, I did that guy's conversion a few years back, I'll have to give that a read!
He has a good 85 TD, I think the only problem he had was losing an SLS hose due to overloading the poor old thing. I recommended he should tow a small trailer right from the start. I remember when he stopped by here on his way I gave him a bunch of oil, the car did not sag 1", you gotta love a functional SLS.