I recently purchased a new B2920 with a FEL and Backhoe...I only have a few hours on it and I'm already looking for a used 3 pt rear rotary mower...The engine HP is rated at 29 and the PTO HP is rated at 21...Is there a particular brand/model/size I should be looking for? I can't afford a new one at this point and will not be using it more than a few hours per month clearing brush on my property...I would like to find something that will work well with my machine and cost under $500...Any ideas are appreciated...Thanks