I want to get a modern symbolics-like keyboard

Like this https://en.wikipedia.org/wiki/Space-cadet_keyboard
but more modern and ``ergonomic''
It also should be good for emacs usage (have the good old meta, super and hyper keys) and have the possibility to easily type ``λ'', ``π'', ``≠'', ``∀'' and stuff
Anybody have any idea?

I'm digging the dedicated "like" and "dislike" buttons, surely it'll make the Facebook experience ever better.