[purpleRac3r]

You are correct, those are the 3 roofs available. While possible, it's unlikely anyone in the aftermarket will make a plain, painted top for the C7. No one does for any of the earlier generations so I would be surprised if they start now. If I were in your situation, I would take the car as ordered, and patiently keep an eye on the various forums, eBay, etc. for a gently used painted top. There are already a number of wrecks out there, so it should be relatively easy to locate a painted top, even if it needs to be painted to match your color. The transparent top will be worth far more as-is, unpainted, especially in a few years when people start wanting to replace their scratched or cracked tops.