Steering problem
2008 Ford F-450 V8 Two Wheel Drive Automatic 117000 miles

Just purchased this truck with an attached 3-car hoffman trailer,

in an auction in CA. I will be driving the F-450 from CA to NY. With the mileage of the truck being 117k what type of routine maintenence should be done? What type of fluids should be changed? When do the spark plugs need to be changed? I rather take care of everything before I head out cross country.
Please let me know...