I don't have a Kioti tractor but I'll offer my opinion.
I have a mahindra 2015 (20HP) with a woods b70x backhoe. I was debating the same question. I ended up going with the PTO pump instead of remotes for 3 reasons.
1. For what I use the tractor for, I had no other use for rear remotes. That may be a consideration for you if you ever want to run something other than the backhoe off the tractor.
2. The price difference isn't all that much after you figure in the remote kit versus the PTO kit.
3. My biggest reason for going with the PTO pump is that you get much more flow at a lower RPM, than you would from the tractor. I can run my Mahindra at just a little over idle, and have all the speed and power from the backhoe that I could ask for, and be running the engine MUCH slower than if I used tractor hydraulics. (less engine wear and fuel consumption)
Hope this helps