Hello! I just saw your project and i'm really interested!.
I'm a developer with 2+ years of experience and my main field are Augmented Reality & Virtual Reality, i have done lot's of projects with this tools so, i thought we can work together in your project!.
Also, i've already work with vending machines, so, i think it's a nice opportunity, could be easy.
I have all de required licenses to publish and develop the app Android & iOS, so we can focus on customization.
I'm really into the project so, i will wait for your message for more details!.