Wow, it shouldn't be that hard given the nice landmarks.... but I know that's easier said than done.
I'd use those landmarks like the very noticeable rock formation sticking up you just past. By the roll it doesn't look like it was going much past where it started the roll, so if you can get to that area below the ridge and past the rocks it should be there... unless someone else found it first.
Did you have any contact info on the plane? I assume there was no GPS tracking.
Looking again it seems to be to the left of your launch angle... if that's you on the ridge then you're above it and should be able to look down over the section you lost it in. If you post a Google GPS of the spot and drop a green pin where you launched I can show you where I think it would be based on the last video. Maybe that's a different search area than you were looking? If you're worried about posting it here publicly you could PM me the spot and I'll tell you my thoughts. I'm out here in California so no worries on me hiking out to take it.