I don't think anybody said his but since you asked, eggs are hatching now pretty much all the way through the summer and into the fall and even winter. You're going to be seeing the most May-Augustish.
If you can't find the snake that you want more locally, don't be afraid to look at animals from across the country. Don't settle for a snake you think is 'okay'. Wait, look everywhere, save up a little more money so if you find the one you really want you won't have to worry about not having the money for it.
Don't be afraid to ask a breeder questions about the animal - its weight, what it's currently feeding on, wobble since you're looking for a spider gene.