I just got back from a meeting with a potential customer. They have an area in their back yard that is about 25' x 80' that they want cleared. There is a line of rocks that is about 8' x 80 in front of the brambles which makes up the remainder of the area. They want the loose rocks moved back into a pile in the woods (moving each rock 25-50'). These rocks weigh between 2 and 50 pounds. The overgrown area with the brambles they want cleared out and the debris moved about 100'. There are only two areas (8x10) where the brambles are thick. The rest of the area they are thin but you can't walk through without getting snagged. Would you take this job? What is the best way to clear out the brambles?