Yes, it should be possible to adapt for almost any type of rigid vertical frame. It's only been released a few days and already people are doing just that.
Nicolas Arias is building a version with square 20mm x 20mm Aluminium tubes instead of the T-slot - Take a look on his G+ Page here -
As for how much plastic, About 350g I expect, depending on fill level.
Nicolas Arias is building a version with square 20mm x 20mm Aluminium tubes instead of the T-slot - Take a look on his G+ Page here -

As for how much plastic, About 350g I expect, depending on fill level.