On the stock two bolt mount mounting bracketed models you can switch the mounts from left to right (and vice versa) so the mount now comes backwards.
The pegs get reinstalled back to their same side, the brake lever cut and shortened and a gear shift rigged up.
On my single mount pegged C model I experimented doing the same type of thing, swapping the mounts, but I tried using either 2 right mounts or 2 left mounts (I can't remember) but gave up as that didn't work out well.
I ended up buying 2004 GSXR600 rearsets and mounting them by drilling two mounting holes through the frame on either side of the swingarm pivot. Others have used ZX and Yamaha rearsets.