I'm with James: Make your own!
Personally, I'd honestly like to see a yellow one. But that's a roadster-only color.
The number of SRT verts is much lower (roughly half) the number of coupes ever built. And finding a used coupe spoiler is right up there with unicorn sightings... if you follow the bouncing ball.
MSRP of the rear wing is NOT cheap. Roughly $1K, and another $600 for the base mounting plate. Plus paint. Ouch.