NATO-Bot, I would say not to give up. Keep trying and eventually it will kick off. Is hard to start something from scratch and build. But the hard work will pay off in the long run.
I'm putting these files up for free over at My Mini Factory. Enjoy! 3D Printable Six Gun's Big guns by Nate Heywood
have you thought about opening up a shapeways store? I'd be interested but currently don't have a printer or really know of anyone with one...