I've been searching for awhile for options on OEM replacement rotors. Until recently, I've only seen one company that makes an aftermarket replacement rotor that is similar to our OEM floating rotor. I've noticed that there was a company in the Audi/VW community that has become very popular for OEM replacement rotors. They even make replacement rings for BBK rotors. I contacted the company and they said they could make an OEM replacement rotor for our cars similar to the OEM design.
I don't have any personal experience with the company but I figured I would share as it might be worth considering for strictly street use. I haven't seen many track cars with these rotors so I can't say how they would hold up on the track.
Here's a link to their website.