Spaw: The part that gets me is the rope ladder........She shells out big bucks and has an architect design a treehouse......then opts for a rope ladder?   Meets "Dimbulb" qualifications for me.

I don't understand why? What's wrong with a rope ladder? Simple, easy, you can pull it up after you if you want to be alone and if you learn how to climb one properly it's not difficult to master.

I climb up vertical (and sometimes overhanging) bits of rock using tiny edges for hand and footholds in my mid 50s, and hope to be still doing it in my mid 70s. I guess that's dimbulb too?