Hey sytanta,
Good luck with your search! It was a bit difficult for me to find the Spectabilis and Jinicuil for awhile, but I purchased a few goods seeds off MauiSeedCompany on etsy. Great germination rate, would suggest inquiring about a mass order, they have edulis as well.
Could also try reaching out to palologrower on the forum, he has sold me inga seeds in the past I believe.