Are there any aftermarket rails made for the RT classic?

I have a blue rail but I want a black one. I am not sure the screws are ever coming out of mine so reanodizing might be out. I want to see if I can just pick up a new rail.

I know Airgun made a couple RT classic vertical feeds. I think they were all steel and had the super high stovepipe vert feed. Any idea how many got out? Or how much they go for?