Nice video 👍I’m new to this (got my Viking a few weeks ago and still breaking in the engine) but I’ve got lots of steep hills and haven’t had any issues tackling them. And I’m just driving through the woods not on a prepared path. I’ve posted a few videos if you want to compare (YT link below) but from your photo it looks totally doable. And I had the same hesitation as you prior to purchasing as some of my hills you can’t even walk up/down comfortably.
One other note if you do get the Viking — the engine braking is awesome. I have been really impressed going downhill that I rarely need to even touch the brakes.