People were as smart then as they are now, just no technology base like we have.
Something I say about shooting that I think applies here, too.
Just because YOU can't do it, doesn't mean NOBODY can do it.
Lots of slick stuff. Maybe ice and snow ramps used somehow. I don't buy most of the "impossible to do"
claim very much.
I once spent about 2 minutes putting together a team to pick up a Beechcraft Bonanza which had landed gear up
and was blocking a runway. We had a bunch of folks giving kids rides and couldn't stand to have the runway blocked.
Without anything more than me yelling, "Hey, everybody, we need some help over here." and moving a few folks around and showing
them where to lift, we had that airplane in the air, and the owner said, "What now?" I said, "Get in there and put the gear down."
And he did, and we rolled it over to parking. Small potatoes, but it took maybe 35-40 people and about 2 min to organize, another minute
to do.
Give some smart guy "unlimited resources" and maybe a serious religious reason that he wants to accomplish something.....
Just sayin.
Because they didn't have iPads does not mean there weren't lots of REALLY smart folks 5000 years ago.