I noticed your trees are 60% Robusta and wanted to address the suggestions about targeting boutique coffee houses and higher-end customers: I doubt very much Robusta will be sought after.

My understanding is that market for Robusta may be only for instant coffee production or to adulterate Arabica to make cheaper. I've only rarely seen Robusta sold green and there's good reason for that: it's distinctly unpleasant by itself.