I AM LOOKING FOR THE LARGEST 3PT BACKHOE I CAN INSTALL ON MY 115HP TRACTOR. I BELIEVE THE PTO IS AROUND 100HP. I HAVE A SECOND SET OF HYDRAULIC REMOTES ON THE BACK OF TRACTOR WITH EXRTA CAPACITY PUMP THOUGH I AM NOT SURE OF THE GPM. SO I DO NOT BELIEVE I NEED THE PTO VERSION WITH SELF CONTAINED...