Nice vision, though I don't know if there's enough momentum for this right away ... at least not on the scale you envisage.
Perhaps a good first move would be to get an up-to-date list of all the practicing Amiga clubs, get something put into Total Amiga, and get some representation at Amiga shows like the Big Bash (#3 is now sceduled for near the end of September BTW, check Amigaworld).