You know there are ways to get 100k without passing the 3rd elevator stage. I actually got 106k before I got past that stage. I used the 3rd level rivets, and got as many points as possible, and then sacrificing each of the 3 extra man I had that way. I then would take the last guy all the way to the elevator stage before dying.
Not really a great end-game strategy though is it?
Keep going good, Evunz. Practice, practice, practice that 3rd elevator and your scores will sky-rocket in no time!