I liked the second design the best. The two-tone of the seats gives the contrast that BJ was talking about, and it gives it an old hot rod feel (to me, at least).
My opinion? I don't like carbon fiber. Sure, it looks kind of cool, but unless it's real, what's the point of making it look like carbon fiber? Always makes stuff feel kind of cheesy to me, like those "carbon fiber" tail lights. I would just dye the dash a matching black or two-tone it. That way, it feels somewhat original, but not quite. Smoothing over a dash has never really been my cup of tea either, lots of maintenance and hassle for something that doesn't look as good as a nicely maintained original or dyed plastic dash.
Probably more than $0.02 worth, but hey, that's what forums are for.