Get some cheap hired help, unless you have time and health in your favor.
We used to drive a dump pick up (try renting a dump trailer) in the barns. Makes the offloading easy and saves twice the work...
Many options here, depends on whatever equipment you have on hand and how hard you want to work. Pitchforks and wheelbarrows/wagons, tractor with a bucket and a pick-up truck, lawn-tractor with a little trailer (forked into the trailer).