Diamond tables are ordered though the factory and dealers get a table and rails. The cloth, balls, cues, and, set up/delivery is on the dealer to provide. There is not much of a mark up over factory direct when you factor all of the added labor and accessories.
With a single piece of slate, I hope you live in a one story or the table is going to be on a first floor. Many movers won't touch the single slate unless it is easy access and no stairs. They still hit you with a premium either way.
Thanks for the offer and the price sounds good, but, it is still to far for me to consider it. I would have to take a few days off from work, arrange transportation and breakdown/set up fees.