Using a rotary cutter and backing into 6-7ft high solid blackberries. I have a Kubota B2320 so I cannot plow through and flatten them before they are cut with the rotary cutter. The cutter is 48" and will raise it up and back into the berries. I had two quotes, one for $3000 and one for $4200. Both quotes were 3 to 4 days of work. I figure if I were to use my tractor and rotary cutter it would take me 4 to 5 weekends to get it done and wanted to get your opinion on how long it would take me. Much appreciated in advance!