As for the boom mower, yes it's quite pricey. However, if it worked, it could keep me off many of the slopes. The slopes are long, aren't that high, and there is flat land at the top and bottom. (They were formed by the creeks.) I could work from top and bottom. I've seen people use mini-excavators and boom mowers in a similar manner... Ultimately, I need to ask PT what their machines are rated for, and go from there....
On the Mattracks, I was only half serious, but I did wonder about the articulation and them touching. Makes you wonder how this can work on the BCS articulated tractor:
M3 Series - BCS Invictus K4��
As far as the Agria walk-behind brush mower.... I have seriously considered something like that too, and may still. I used to have a BCS walk behind tiller that could take different attachments, similar to the Agria. BCS is available in the US; I don't know about the Agria. There is also a purpose built walk behind like the Brown Brush Ox or Billy Goat. However, if I can find something that I can ride, that would be preferred as I am on the down side toward 60....
And on the topic of BCS, Agria etc, that brings me to my gripe about how the European market has so many more equipment choices for small loaders and articulated FWD tractors than we have. Avant, MultiOne, BCS, Antonio Carraro, etc. I don't understand why there isn't more of a market for these in the US. The ones that are imported are either very expensive and/or have limited in availability/service/attachments. The only domestic counterpart seems to be PT or Ventrac, with the latter being more for turf. There is the Gehl AL140, which used to just be a re-branded Avant, but it is $28K to start. It seems that the US market is limited to the conventional CUT design and nothing else.
I do like the simplicity and heavy-duty construction of PT. It reminds me of the original Wheel Horse (before sold to Toro). I still have my Dad's early 80s Wheel Horse and use it all the time. I can easily service it myself, and with proper maintenance it, and the old cast-iron Kohler will probably run as long as I can find parts....