I agree with everything said above.
Females first!
Though I wait 2 winters and not 3 to start breeding them.
Getting a male first is a little pointless because you have an extra mouth to feed, house, and clean after.
You would still have to wait for that female to grow up (lets say 2 years). So within that 2 years, you have a male and female(s) to take care. Yes it's not difficult, but you can save time and money not housing that male for at least a year.
I say buy a male when your female is at least 500-800 grams. Plus by then, male prices would probably drop.
Also, someone mentioned breeding a 2 gene female to a single gene male. Unless the single gene male is a high dollar or uncommon morph, you want to breed that female to a snake equal to or better than her. (2+ gene males)
Anyway, with that said, I also recommend investing in multi gened animals. They are better in the long run and will save you time, space, and money. For example, instead of having a pastel and spider, you can get a bumble bee. That's half the work, time, and money. It adds up in the long run.
And multigened animals means less chances of normals in a clutch.