I was looking at a 5' bush hog I bought new in about 1972 but have not used for probably about 20 years :? since I started using 15' batwings.
I have a lot of pasture that is ridge tops and draws that are hard to clip for weeds
and as such have become rose bush and hedge apple thickets. 
They are next to impossible to use a tractor and bushog in. :x
Then I had a brainstorm.
I cut the tongue and axle off the bushog, turned the gearbox around, plated the entire back and half the left side with heavy steel, added a hydrolic motor off an old salt spreader box, hinged a quick tach plate to the rear, put two chains from the top of the quick tach plate to the front of the bushog and hooked it up to the bobcat. I have about $50.00 and 20 hours invested.
This has worked 10 times better than I had hoped! I never realised the blades protrude about 2" :? in the middle of the front and as such if I center on trees a 4" tree takes about 2 seconds to fell right at ground level 
and the deck pushes it away from you as you cut. Going through the rose bushes is a blast!
Everyone on the place wants to trim electric fence now.
You can go at a angle and mow about 18" on the far side as you go. I cut everything off the top of the deck that was no longer needed so it is smooth and slips right under the fences.
I cannot post pictures here but if anyone wants to see it PM me and I will provide pictures that you can post back to this site.
I have a lot of pasture that is ridge tops and draws that are hard to clip for weeds
and as such have become rose bush and hedge apple thickets. They are next to impossible to use a tractor and bushog in. :x Then I had a brainstorm.
I cut the tongue and axle off the bushog, turned the gearbox around, plated the entire back and half the left side with heavy steel, added a hydrolic motor off an old salt spreader box, hinged a quick tach plate to the rear, put two chains from the top of the quick tach plate to the front of the bushog and hooked it up to the bobcat. I have about $50.00 and 20 hours invested.This has worked 10 times better than I had hoped!
I never realised the blades protrude about 2" :? in the middle of the front and as such if I center on trees a 4" tree takes about 2 seconds to fell right at ground level and the deck pushes it away from you as you cut. Going through the rose bushes is a blast! Everyone on the place wants to trim electric fence now.
You can go at a angle and mow about 18" on the far side as you go. I cut everything off the top of the deck that was no longer needed so it is smooth and slips right under the fences.I cannot post pictures here but if anyone wants to see it PM me and I will provide pictures that you can post back to this site.