Our land is a little over an hour south of the OP, and we have a similar ~35 acres on a hillside, of which I need to maintain about 5-7 acres. I shopped many of the same models the OP was looking at, initially looking at the Mahindra Max26XL, then the 1500s, and was on my way to check out the Kubota
L3350 (and to talk to the dealer about the known regen issues) when I accidentally went into a Kioti dealer. I would suggest the OP at least give them a look. There was a dealer in Afton that gave me a very reasonable quote via email, though I ended up with a CK3510se from a closer dealer that's being delivered next week (the Akron dealer may also be the local Yanmar dealer). If you consider the CKs, skip the 2510 (smaller frame) and go to the CK2610 as a minimum (same engine as the 2510 and still rated at 24.5hp, so no regen, but many claim punches above it's weight class and is on the larger CK frame that's around 2800#). With the loader and filled rear tires, it should be >4000#. I had concerns about the DPF as well, but in the end, I wanted a little more HP to run a wood
chipper and other as-yet-unknown implements down the road, so I bit the bullet on the DPF. As an FYI - You can get the 35 and 40hp CK models in an 'SE' model, which has a independent PTO and most options from the base CK models as standard.
Depending on how thick the brush is that you want to cut, you may also want to consider a flail mower like the WoodMax FM-62. As long as you don't need to cut anything more than an inch or so thick, it should do the trick while being more maneuverable in the wooded areas, and can also double as a finish mower, especially if you get an extra set of blades (the Y for grass and the heavier duck-foot blades for thicker brush). So, you only buy 1 mower instead of a brush hog and a finish mower, and don't need the mid-pto for a belly mower, saving another $1k or so. I plan on getting one eventually, but for now I plan on maintaining a few short wooded trails and a little brush with the FEL that will I probably put a Piranha tooth bar on and a root rake grapple from EA (I have a nice Simplicity mower for the lawn areas).
BTW, @OP - do me a favor. Stop into Oneonta and have a slice of cold cheese pizza for me.

Thanks!
-Lee