When we moved our shop from Hillsboro into storage just down the street, we used Chipman relocation services. They are located on Marine drive and are professional mover that move very heavy things all of the time. I didn't have to lift a fingure.
Call Pamela. 503-542-7134. You can tell her I gave you the number. She's great. We also stored our pile of lumber in their warehouse until we could build our shop.
If you have any questions, you are welcome to call me at 503-519-9638