*sigh*
You guys are making this very complicated from what I've seen thus far.
It's difficult enough without adding all the components you're trying to add.
Easiest thing to do.
Buy stilts (the bouncy ones), make a muscle suit.
Materials for muscle suit:
-Fabric (black colored)
-Foam (for the muscles)
Hands:
-been posted here already, i used it.
-for the head:
best to go with something do-able.
fiberglassed pepakura might work, but i'd lay the cloth you used for the body of the head to keep the costume the same consistancy.
You could do a pepakura suit, but it would look awkward.
Just my 2 cents, I should know because I'm 1/6th of the way done with my elite.