Shipping of used equipment is usually worked out between the buyer and seller. Occasionally the seller may be able to get a quote for you, but usually the responsibility is upon the buyer. And of course, the buyer pays shipping.
The price will vary greatly depending upon a number of factors.
1. Is the pickup point a residential or commercial address?
2. Does the pickup point have a loading dock or will liftgate or forklift service be required?
3. Is the destination a residential or commercial address?
4. Does the destination have a loading dock or will liftgate or forklift service be required?
5. Weight and dimensions of tractor (freight class).
I've used R&L Carriers before.
http://www.rlcarriers.com/