Ask HN: Ultra high resolution map projections

Where can one find really high quality map projections (images or even better high quality vector files) I'm especially interested in the Dymaxion, but if there is a collections of most of the map projects out there, that would be even better. I want to get a file with enough resolution to print a huge map about 3 feet high and 6 feet wide. Also, if anyone from the Google Maps team is reading this. Can you please make Google Maps available in other projections?