Kamachi can be rather 'liberal' when it comes to physics, but he tends to be quite on the ball with the latest in technology development (at the very least I haven't heard anyone here calling him out on the machines he had built in New Testament so far
) so it's quite likely he would apply most of what you've mentioned into his own space elevator and then some.
However keep in mind though that this is a movie, not a documentary
we probably won't see most of the subtle details on screen.