Go for a d40 nivarra (the current shape) very nice truck to own they go really well and are so much nicer to drive and ride in than the rather primitive mitsi, yota, ford, mazda, izuy etc
the old shape nivara (d22) do have serious engine issues but if they have had a nissan replacement they should be fine. (modified Internally appearently)
i have both a d22 and d40 and drove all the rivals before buying them, if i was buying a new truck now i might consider a toyota as they have finally fitted a engine with a decent BHP rating.