One thing also, be aware of how you type out that first email.
The very few times I've advertised anything, I invariably get some emails that sound like this...
"U have 1 i cud get?"
And that's it. I'm not saying that YOUR email read like that. But just wanted to point out that those emails pop up too. I've gotten long rambled stuff that I couldn't understand, and when I reply with a "Could you clarify your email please?" I get a bunch of snotty nasty language with vulgar terms. Still could not understand the basis, but the 'delete' key worked fine.
A good clear header on your email also works, if it's not a "reply to" type thing. That helps to keep YOUR email going to the Inbox, instead of the Spam filter.
That might not ensure that every breeder responds to your email query, but it might help you win some attention, if you haven't paid attention to that previously.
And I do understand that sellers should expect to get some bad emails, and it's frustrating to respond to a email asking tons of questions, and really answer everything, and send extra pics, and more info, just to have them suddenly go silant. Then a month later it's "Do you still have that snake for me?"
I'm glad you finally found a good deal, maybe that was the Deal Awaiting you.