In responce to the HP required. I used a 15ft batwing to clear 50 acres last week using a 150hp pto John Deere. Not sure of the models of either but included is a pic. I think a 50-80hp tractor would do fine in light moderate stuff, but there were areas where the tractor I was using was getting a workout. We have fine white sand out here and a drought so it was very dusty work. The shredder had new blades when we started, and they were nearly completely gone after 14 hours.
Lastly, that bat wing looks so good, I'd be afraid to even use the thing! After spending all that time working on it, I'd freak out if it got a scratch. You did a great job on it.
BTW, this is just where the rig was parked for the night, this part of the land is nothing like where I was using it. Note the old pto pump box my dad ran over instead of picking up.
