There are more then bright red individuals. We have some over here that are crazy outa hand pretty, including red ones.
There was a guy in Kansas that bred coachwhips. I do not know if he line bred any.
The problem is, they will not work at all in rack systems. They are much like active lizards that require the ability to behave(do things).
I almost caught one last year that I would attempt to pair up. I will be going back to that area this year. I will keep my eyes wide open.