:welcome: from Gilbert! I haven't seen any places selling peppers hotter than orange habaneros, but people will sell small flat rate boxes in the forum ads section. I would say that is your best source!
I've also heard adding things high in calcium like eggshells would help but I assume that's not something you want to do if you have a big garden. I don't have experience with rock phosphorous or dolomitic like so I can't attest to that.
It's a sub section under hot pepper talk. Is there anybody you could get to post the picture for you? I post all of mine using a photobucket account. They even give you a link to copy and paste