I don't think the Mugen concept or prototype body components or even all of the performance parts are available. As far as I'm concerned, there is no one running a wide bodykit CL7 in Japan for racing purposes. Therefore I don't expect to see any road use replicates endorsed as yet.
In all seriousness, I don't see a need for a widebody CL7/9. The whole purpose of widebody is to incorporate the wider wheels along with wider contact patch instead of it sticking out beyond the lines of the exterior styling primarily for aerodynamics in racing. All else is just for show when the factory contact patch is sufficient for 95% of all driving conditions.
True Noel, but you forget one thing. Widebody is [email protected]#ng cool. I'd kill(maybe) to have a widebody on mine. Not only does it look mean as hell coming at you, but you're also unique, cause there's not many out there.