#2 was the largest I could get with the slinger truck. When they delivered the #2 limestone at my place, the cost was $15 per ton for material, placing, and 80 miles round trip. At this rate 100 tons would only cost $1500. The money saved compared to using the Quikrete would easily pay for the cost of cutting down a few trees and replacing them with large ones.
The guys I used updated their website
http://rockchuckers.com/ Would it be possible to curve a driveway through your trees so you'd still have privacy?