1. A four wheel alignment can't actually be done on a vehicle with a solid rear axle and leaf springs; all they can do is see if it IS in alignment
2. Depends on where you are in the queue. Bear in mind you are not their only customer and they are dealing with mountings and balancings in addition to alignments.
It should take 1.5 to 2 hours if nothing needs replaced unless they have a hard time getting the wheel straight. Dodges are hard about getting the wheel straight some times. I work as a service advisor at a dealership.