I really like the round headlights and the look of the older truck but I don't live in town and getting places so my vote is a 660 with a 5 speed as they have a much better top speed. Just my perspective. good luck making your choice.
Though they look cool, parts are going to be near-impossible to find. I have the next gen HA2 E05, and it's hard enough. Go with something from at least 1990 with the E07 engine. Parts are way easier to find. Might be able to get aftermarket round headlights if that is something you like.
