You'd be everyone's hero, however, most people who tried that lost their sanity down the road. Nobody has ever tried porting Linux >2.0 driver to Mach to my knowledge. Anyway, the current drivers being in use are not only 2.0 drivers, they are a mixture of lots of versions. (#hug or #hurd-l4 on irc.debian.org) ##hurd is a better place than #hug.