We've been to this part of the world
in a previous thread* and you'd go a long way to match Sascha's AFS2 custom scenery. What made me think of it was I was never satisfied by the helipad modelling, looking like stone-finished bottle tops plopped in the scenery.
Well here's the real deal

Still, I loved going there in the sim. You get a sense of the place, most notably, that while Everest is high, the whole darned place is high!
And as you point out, difficult even for the right helicopter, correctly picked by you.
What a remote and hostile world, and people have come in droves over the years, and did what people tend to do: ruined the place.
Apart from the traffic jams on the mountain, each year they dump over 6 tonnes of trash and leave it there.
This not counting the dead bodies.
To the point that there is strong consideration to stop the whole show.
https://www.nationalgeographic.com/adve ... ual-planet*Good search function on the Forum, by the way!