Best advice is to start with females.
The time it takes to grow them out and be ready to breed can take two to three years if not longer.
Buy a couple very good looking animals with the genetics you like. In a year or two start looking for a power house male to compliment the time you will then have invested.
Males are usually cheaper and their price drops every year.
I have a thing for recessive genes but a lot of people dont want to invest the time into making a bunch of hets and then proving them out. I like the long game.