Just fruits and exotics has lots of mulberry for south http://www.justfruitsandexotics.com/JFE/product-category/fruit-trees/mulberry/

Thanks Melikeeatplants, I really appreciate your time. I've never paid so much for starter plants however! They seem very overpriced compared to what I'm used to paying here for plants lol

They are priced high but any plant you buy will easily pay for itself over the years . Better to pay more for a variety you want than less for one you don’t