Just a bit of advice,
buy fuel filters and replace them before you drive the truck off the lot, second buy batteries, third bring a credit card with a high limit Becuase there's a very good chance your going to wind up on the side of the road. If any of the tires have been flat be very careful till they warm up.
Unhook your ctis if it has it even if it's working unhook it till you get home. I would also buy bulbs for the blinkers and tail lights. Bring plenty of tools. Also bring about 3 gallons of oil, 3 gallons of 30wt or dexron III, bring a gallon or two of 80-90w gear oil, and 2 or 3 5 gallon fuel cans. If the trucks starts and runs take it to a big parking lot and get familiar with the way the truck handles and the way the brakes work. I would also bring some brake clean and pb blaster so you can clean and free up your air dryer Becuase there's a good chance the relief valve will be stuck open.
Its always a good idea to just have the truck shipped home.