Generally speaking, if one has tasks that require a 75hp plus backhoe, one either uses a single-purpose machine, i.e. excavator, or uses a dual-purpose machine, i.e. construction loader-backhoe. "Dual purpose" may be a misnomer as construction backhoes are often fitted with a variety of front-end implements such as fork blades, grapples, etc, but basically have a FEL and a BH. Construction backhoes are not usually fitted with a PTO so they are not as versitile as a utility tractor with a PTO. Kubota's Tractor-Loader-Backhoe line maxes out at 63hp; that is only marginally more powerful than your Kioti.
Perhaps it is time for 2 new toys, a more powerful tractor AND a dedicated BH.