I know Rick (Baxman) has duals, and I believe one or two (at least) others have gone that way as well.

I have thought about side exhaust, and I have seen other vehicles do the conversion with no problems (that I know of). Heat close to the cladding could/would be a problem. I have also seen heat shields or wrapping to keep sills from burning legs, so that may be on option. I have been trying to find the right pics to Photoshop on to a VX to show side exhaust, but I never could find the right ones. STILL something I am thinking about.