I don't know how much money and time is put into this plane but wow! I've honestly never looked at the Chinook planes and considered them as a possibility for the future but after reading up on some of these "Yukon Chinooks" and what they are doing with them is pretty eye opening to me. They really do look like a small workhorse with some of the right mods and honestly fit the bill pretty well (stock that is) along with having a good useful load.
I have yet to find a spot anywhere on the web which really discuses these Chinooks, they don't seem to popular. haha
What I know so far about his plane (I think):
Chinook WT11
Rotax 582 (which I'm sure is not stock)
DR Gear System
8.50 x 6 Tires
Fuel Tanks in Wing
Slats
Flaps
Adjustable Horizontal Stabilizer
Balanced Control Surfaces
I see on Aeroplane Manufactory website that they carry the DR Gear as an available option but that is it.
Sure would like to learn more about their mods, maybe find a build log or something.
There use to be one of these in a hanger a few doors down which I know hadn't flown in years. If it's still there I may hit up the owner and see what I can do about getting it maybe. My flying conditions aren't as harsh as the Yukon here in west Texas.
Here is the YouTube video of his 2018 Valdez STOL landing:

