Pricing an install on a block wall. The block measures 8"H x 18"W x 21"L. Weight 120 Pounds / block, set with pins. This wall is a joint venture b/t property owners. It is planned for 500 block with 152 caps. What do I price - per sq foot, hourly, or double my supply cost?? Also calling for around 90 - 100 tons of aggrate. The digging is easy, one side of property is high, the other side very low, just building up in b/t land owners.