I know we all hate these type of questions but if anyone would give any type of advise it would be appreciated. I got a call from a lady on clearing her dirveway, she wants aprox 5 feet on both sides of the drive cleared and the driveway is almost 600 feet long yes 600 feet. The majority of debris are those thicket type of trees (Some w/prickers) mostly smaller trees tangled together and about 10-15 smaller trees aprox. 20-30 ft tall and about 10-12" in diameter. Please any help would be appreciated, thanks.