It would be great to have a US based source of the Rat Rig 3D printer kits. It would seem that Openbuilds would be the logical source. I have built something close to a Lead CNC machine from Openbuilds parts. It works very well. I think the Rat Rig design is a similar robust approach to 3D printers. Shipping from Portugal isn't too bad but the 25% tax is a killer!