There’s still a stock of Destroyer and a few other CBG strains sold by a trustable spain source. List of available beans not so long ago:
Contact:
Beware that there’s no more original CBG packaging, beans are sold in basically the same one than what you received from tucultivo. So who knows, maybe they’re legit? I would not bet on that, but worth popping them to see. I’ll try to do some graphology with the pack I got to compare the hand writing with yours 
Oh and welcome aboard!