Last year I was in the same position (with ~40 acres of similar composition), also debating between XR, XU and the Kioti equivalents... ended up with XU5065CPS because it offered most bang for buck, tow-ability, maneuverability, and a factory backhoe option compared with competitors. So far I've principally been digging up bamboo roots and tree stumps, and moving said bamboo/roots and dirt around with the loader. I also used the backhoe to establish vegetable gardens and plant trees (overkill, but it is the only implement I've got for now). In close quarters to a house, pool, and 4' retaining wall... it really has been a great TLB and 100% reliable.
Looking forward to doing some PTO work soon... fence post auguring, plowing, tilling, and brush hogging. The learning curve has been minimal, including the power shuttle transmission. I'd prefer hydrostatic too, but think PS is the next best thing and I like the 16x16 versatility for aforementioned jobs plus possible haying.
My 2 cents: get the cab. You'll only pay the cost once, but it will pay you back every use with increased safety (esp. If allergic to stinging insects) and isolation from noise, fumes, dust/debris, manure or fertilizer you may be broadcasting, temperature extremes, and precipitation. Plus my cab and tools stay rain and pest/varmint/bird poop free. The only downside so far is that it is too tall to fit in the 8' doors of a detached garage, and I have to maneuver around tree limbs. Best wishes in making your decision.