A CK2510 has a bare tractor weight of ~~2,260 pounds.
Backhoe + Backhoe bucket adds 1,200 pounds. FEL with bucket adds 605 pounds. Fuel + lubricants and a few tools add 200 pounds. Options: ~~2,005 pounds.
4,265 pounds total.
There is only so much 25-horsepower can do.
The two (2) range HST transmission a CK2610 equipped with a Loader and Backhoe and 25-horsepower engine will be very, very slow ascending hills, if you have hills. Traveling 30 level acres will be slow.
Most tractors under 3,000 pounds bare weight operate in residential landscaping or hobby farm applications on one to ten flat acres.
You omitted the alternative Kioti model under consideration.
I am planning on keeping this tractor for 20 years.
In my opinion you are shopping too light. At minimum shop the DK series at ~~3,373 pounds bare tractor weight and a three-range (3) HST (Lower LOW, Higher, HIGH) rather than two-range (2) HST.
Heavier tractors are constructed on larger frames and longer wheelbases. Greater inertia of heavier tractors make them more stable during FEL and Backhoe operation. Heavier tractors are built with thicker steel to withstand greater stress. Heavier tractors with large diameter wheels/tires have more tractive power pulling ground contact implements, pushing a loader bucket into dirt and pushing snow. Larger wheels and tires permit heavier tractors to bridge holes, ruts and tree debris with less operator perturbation.
As you age you may wish you had purchased a de luxe Kioti rather than an economy Kioti. Plan ahead.
I am interested in experiences with diesel particulate filters in compact tractors.
Tier IV emission controls and DPFs began to phase in ten years ago. Old news in 2019.
Consensus is DPF problems are 90% caused by operators who do not carefully read regeneration procedures in Operator's Manual or refuse to follow the procedures. Most small property users regenerate just once per year. This creates regeneration uncertainty in itself. (Regeneraton occurs around every 60 engine hours in warm Florida. Non-commercial users average 80 engine hours per year.)
Operator Manuals for DPF equipped compact tractors do a poor job of explaining DPFs and a poor job of explaining regeneration cycles. Most manuals do not inform that filter soot accumulates faster during low weather temperatures, none inform time required for DPF to attain 1,100 degrees Fahrenheit, the ignition temperature for diesel soot and none address faster soot accumulation at higher altitudes. It seems to me a DPF temperature readout on electronic instrument panels would address many DPF complaints, as would more descriptive technical writing.
REGENERATION VIDEOS:
Kioti DPF regeneration - YouTube
Diesel Particulate Filter supersedes tractor muffler.
At some point in time DPF needs to be replaced.
At some point in time tractors with mufflers need the muffler replaced.
Tire wear and tire replacement will cause as many headaches and more expense than DPF for most long term compact tractor owners who read and comprehend their Operator's Manual.