I'd confirm that the Aussie headers will work on left-hand-drive. Seems like there was some question of that when they were released a few years ago...
Also, just to reiterate, if you're serious about this, go to slantsix.org and read, read, read. There's some great slant info here on FABO, but .org is the slant bible. That's where the hard-core slanters are.
