i was asked to bid on a big job yesterday. i have to put in 3 seperate bids. the one i'm having trouble with is cutting some ditches that are about 2500 ft. varying from 3-6 ft wide. 90% of of it is thick brush, i'll probably be using some beaver blades and maybe a chain saw on a few things. after i get it cut they want it sprayed and kept maintained. any info would help, i don't have any pictures, the contract is from march through october.