I've been working on a 'crib' in the barn for our TH for the winter. I put down 1/2" slag from the local steel mill. it doesnt create much dust like lime or pea gravel, packs like concrete and is okay to use under concrete which i plan to pour in the spring. the barn has 200amp service and the bay is wired and lighted for the TH and the toys.
the slag is alot cheaper too: $2.50/ton compared to $6.50/ton for 3/4
I have a large enough driveway I bring it into to load and clean pre/post trips and have a weatherproof 30amp outlet on the side of the house to plug into there.
06' Summit White Silverado 2500HD, CC, SB, 4WD, LBZ Dura/Alli