I heard that the Incredible Hulk is secretly an experienced timber-framer, maybe you could hire him to mover timbers. He also likes to build straw bale homes...that is, ever since he went "green".
If Jim's cart idea works for you, you could make the cart just lower than the top of the saw horses, lift each end of the timber and slide the saw horses under each end, and then leave the cart so that it would be there for when you needed to move the timber out again.
Good luck, and remember to always lift with someone else's back.
Rooster