Easy life or not, 75k on any engine is approaching major rebuild time.
I bought an '89 3AJ from FC Trott a couple of months ago. He had another 3AJ and a few earlier models which were imported from Italy. Mine was pristine at 20k miles - I've since had a good look over it and concluded the previous owner had really taken care of it. Unfortunately just a few weeks on UK roads has caused corrosion all over the place. I paid £1,500 for mine, which I thought was about right seeing it was in such good condition - came with givi screen, paolini (sp?) shock, progressive front and even original toolkit.
Very happy with the bike, the price and FC Trott. You could get a second-hand one cheaper from a private seller (if you can find one in the UK!), but it'll never be in such good condition.
Yamaha XT600Z 3AJ Tenere
Honda ST1100 Pan European Police