I found a daycab 1995 Freightliner FL70 with a 5.9 12v cummins and a eaton 9 speed transmission. Can you guys list any reason I should/should not buy this compared to a Cat 3216 motor or was is 3126... The Cummins only has 120k miles on the truck as well! I'm going to be pulling a 50 foot car hauler 3-4 cars and a 28ft container, but mostly for the car hauler.Thanks.Oh, and do all the mods swap to this truck that the regular road trucks do?