According to the sidebar alongside the database entry for Cranfil's Gap, 11 of our members have it, And if you click on that, you get a list of the members who do, as well as the information that Superstition Gardens was the source for at least some of them.
Unfortunately, Superstition Gardens does not have a web page, but rather only a Facebook page, which is kind of weird, considering how many people have closed their Facebook memberships (myself included) because of Facebook data leaks and gathering and sale of personal data. However, even if you don't have a Facebook membership, You can still find their phone number on their public -facing facebook page. Give them a call and ask whether they still have Cranfil's Gap.
If they don't have it, maybe you can work out a trade with one of our 11 members who has it.