I would suggest a Corduroy Road. Easy to set up, reusable, and spread the load out on that sand. Wouldn't take more than a truckload of telephone poles, and enough cable to cinch them tightly together.
Then dig it out and pull it clear.
It was interesting to watch while on the set of Army of Darkness, as one large crane, and one small crane, righted and removed a medium sized crane that had over reached while lowering a car into the gravel pit. It tumbled down the slope, upside down.
Removal was slick. Big crane lifted and set medium crane to the pit floor, as small crane spun it upright. Then big crane lifted both cranes out. Fast and practiced maneuver. No motions wasted.
