This is a one-off (so far) machine that seems to be far more specialized than the typical drink machine. I doubt the local candy machine tech would know where to start. In my experience, the more obscure a machine is the more it costs to service and the more time it takes. This machine is not exactly common with service centers and toll-free service hotlines.
It's one thing for the designer to service his own machine, and another for it to be deployed in a place where he does not live. The goal of my post was to point out the practical challenges of making this a viable automation solution. Since it appears to target tiny remote towns/villages, it has to be designed and manufactured very well. At some point it is going to start smashing eggs or get a machine stopping error that will need help. This thing has much more motion control than a 3 axis CNC. There is really not much to a CNC, it is just intimidating because its huge and can kill you.
Also, companies charge 3x-4x the hourly rate of the technician. When I am paying $175/hr for service, I know for a fact that he is only making $30/hr because he told me - nearly 6x! Non-factory freelancers can be found for $100/hr but it voids any warranty and they will possibly refuse even paid service if the machine has been "tampered" with. Liability I guess.
When this thing breaks, call the local appliance/vending machine repair guy and see how far you get.