1) How much will you guys charge to spread white rocks in a 514 sq. ft. area (one bed is 39'X6', and the other is 20'X14' Totaling 514 sq. ft.)? 2) How much will you charge to spread mulch in a 1650 sq. ft. area (spreading the chips only, nothing else)? It's for a child cares play ground, area is almost a perfect square. Thanks!