Agree with the value rankings noted previously. Not that rarity always equates to value but I can tell you that as a previous longer term owner of a documented / restored LS5 convertible you would be hard pressed to find very many that have been listed for sale in the last couple decades that have a true build sheet for documentation......many pretenders that lack proper (or real) documentation.
I know that one gentleman on this site has a real one......Carolina Blue if I recall
P.S. My old one is now living in the Albaugh collection surrounded by other noted Chevrolet convertibles.