Morph females are generally pricier than morph males just fyi. I'd go to the expos and see what people have for sale. If you're willing to wait the 2-3 years to bring a hatchling female to size and maturity, then picking up a baby will be more cost effective and you'll have more options to choose from.

If you want to breed immediately, go for a proven breeder female. They aren't as plentiful as hatchlings are at expos so your choice of morphs would be slightly restricted, but there will still be many to choose from, and you know she's already proven to breed.