Regular papers or NC (non charactoristics) papers? If she has regular papers, you can breed her to anyone. If she has NC papers than you have to breed her to a stud that has regular papers to get a registerable foal. Now if she is NOT registered, Than your SOL unless you get color. If you get color and it is a colt, you can geld him and hardship the foal and get regular papers with UNKNOWN parentage. If it is a filly with color, inorder to hardship her, you would have to spay her. You are pretty much playing russian roulette for color.
I am "thinking" that his stud fee is $750 but don't quote me on that. I can ask when I talk to Al tonight if you like.
Gus is awsome, You can hardly tell that he is a stud. You walk him to and from turn out or the hot walker with out a chain. He got loose off the hot walker about 2 months ago or so and he ran around the property and did not once go to any of the horses in outside pens. If I had a reiner mare i wanted to breed to he would be it.