You know, there are as many 'styles' and roughouts and such as there are homes in America. But I have to be honest with you that it's very hard from here to tell you what to do. I don't think a professional stairbuilder would be able to tell you how to build them even if you provided a description and pictures. You kinda 'have to be there' to see what one has to work with.
BUT, all is not lost. Here are a couple of books and a link to get your started. Beyond this, I think it's fair to say you're on your own. If you have a particular question once you get going, then you'll be in a better position to describe a more specific 'problem' and I/we can help you. Until then, my best to ya and hope this helps.