At least with the 7.3 you WON'T be wishing you got the bigger one.

There's been a couple of 4.2 reviews on the forum - Diesel Sub rates them for their bullet proof toughness - he's seen them absolutely thrashed day in day out and never fail. Mind you, a 4.2 in these big units and you'd wouldn't often ever be taking it easy would you?

The 270ltr tank is an aftermarket tank - called the Long Ranger Extended which is made for the 4x4 crew cab.

Do some research here and on the US forum to get a few ideas what to look for. On the 7.3 it is common knowledge that the auto trans (the R4-100) is the weakest point. Having said that you can get a fully rebuilt heavy duty unit freighted in from the US for aound $6k from one of the two specialist transmission builders over there.

As post above, I would not be paying $70k for a unit with 300k K on it unless there were receipts for a lot of new stuff, and it drove pretty much like a newish truck!