One of the problems is that you will face a shortage of material in a few years. As long as the producers will understand that they are paying for what they are

One of the problems is that you will face a shortage of material in a few years. As long as the producers will understand that they are paying for what they are giving for free. They will start to sold you the cuttings instead or burn them. I would try to assure the source of production before investing much more on the project. Maybe you could grow your own cuttings? Or... If you can grow cuttings, you could also just grow a plant and prune it carefully. A plant will produce fruits each year, more big and with more sugars because the plant has more capital to invest in fruits than cuttins. My bet would be than cuttings will most probably produce a worse fruit. Third footnote. In fruit producer's world, some varieties, often the best modern varieties, are copyrighted and this is serious stuff. Older varieties aren't, but the other, you can bet it. Assure that you are not using cuttings of those (or talking about them in your web), unless you want a phone call from the owner of the copyright asking for their money in royalties