Here's a bit of history on the Elliot Lake F Trail. When several uranium mines closed in Elliot Lake in 1990, a few thousand men were out of work. Part of the government funding initiative was to re-train / re-employ mine workers. One of the sponsored projects deployed was the development of a trail link between Dunlop Lake Lodge and the Kindiogami Road. One of my friends laid off from the mines helped clear cut that trail. Obviously some ups and downs and tight corners, but it has improved over time. Hats off to everyone whoever worked on that trail and continues to do so. There may be more history, but that is all I know. I started riding it in the mid 1990's
Reach out to Pat from Mazinaw , they have hydraulic, you could also order what you need from Ebert Welding, think the lugs and cylinder cost $255.00. You either need a separate circuit or you will need to install an isolation valve. for the couple times a year you would adjust, I would save your $$$ for something you really need.....
We installed the hydraulic cylinder on our drag a couple years ago. Works great (with an attentive operator) as we have it set to extend to about 10 degrees past vertical and it cuts way more. Can retract in to better balance the drag on side slopes and to avoid trees, later in season, or with less experienced operators we can leave it retracted in rather than removing like we did in the past. Not sure on specs for hydraulics. Ours came from Ebert with the brush bar, sat on a shelf for years as some of the other guys didn't think it was worth installing.
Contact snow country district 6 office I would say 95 % of brush bars in our district are hydraulic retractable. Work great we had fixed positions and had lots of damage. Since retactable no problems