It's great someone is interested in these species,
I'm going to go out on a limb and guess to get them growing around Europe and fruit production?
I'm pretty sure monetary gain is out of the question.
i'm a huge collector of sambucus nigra and its cultivars, but of of this i started to get more and more interested in other plantfamillies etc, and in the end i stumbled upon cherimoya's
i buyed myself some fruit and saw the seeds, now i have 3year old seedlings
the more i came to knew about the complete annonoidea's the more i grow facinated by diffrent species in this familly. i took a great liking to the asimina's
the fruits they produce don't really interesed me so much, i just love the way they look
i really hope i can find some :s