Hahaha...I will fish through here and answer what I can. Do yourself a favor and don't do it. I made the mistake of getting involved in rodent breeding. Now it has become a burden and an addiction LOL.
If you're doing it to save money on feeding your own stock then go ahead. If you plan on making money doing it I would advice against it. You won't make any money LOL. I just threw away about fifty pounds of jumbos. Its a ridiculous business and I kind of regret doing it myself.
I am going to copy and paste your questions in another post along with my answers.