@Clint: Thanks, food for thought. Of all things I completely forgot about software: I took for granted that once you make the STL getting that printed was trivial. Oops...

For the record, looks like the Thingomatic is no longer an option, and the Replicator comes preassembled.

Browsing through the various RepRap derivatives, I stumbled upon the Cartesio. Same concept as everything else, but this one can apparently be changed into a CNC router to prototype PCBs. Will try to find out more...