When you have a few years, you should go for THE BEST! your female has a pedigree, so learn more about the breed and find The Best Male you can get! Don't look at males in your family or neighborhood, find one who fit to her, talk to Cassies breeder who has the knowledge. It's a lot of work and money to show her, to work her and to check her health. To show her, will help you to figure out what is her goal and what kind of confirmation mistakes does she has, so you are able to find a male who will fix her mistakes. To have a part of cassie is surly not a reason to breed, but right now you don't know does she is worth it to be bred.