It's different for everyone. I started cooling in October, and started pairing in November. Some do it earlier, and others later.
I would take her somewhere to have her pop'ed/probed first. If it's a male, he's probably ready to breed anytime. If it's a female, I would get her up to 1500 - 2000 g's. But, she'll be ready probably by 1200. I just use higher standards to try and get a bigger clutch (not proven).
Judging by the age and the size from pics, I would say a male. Just a wild guess. But, honestly, I would hope for a male. That way you can pair him with multiple females.
How close are you to Edwardsville?