Hi Pam!
Do you know yet what kind of dairy goat you're getting? We have a mix of LaManchas, an Alpine, and Oberhasli/LaMancha crosses. The LaManchas have a great personality, high production (ours make about a gallon each per day), and really rich milk, so I think they're the best in those regards. I don't care for their weird ears, but otherwise they are my favorite. We keep some kids for butchering, so I'd love to add some Boer genes to our herd someday. There's just not a big selection of goats around here.
I can't get mozzarella to work yet either. For a Mexican style cheese like mozzarella, maybe what you want is Asadero? There's a recipe for it on this website that I tried, but I think I did something wrong because it isn't the right texture. I'll have to try again.