Greetings,
Understood your requirement and have already experience building something similar in the complete restaurant solution we have build for one of the US client.
We can help you build this solution so you can manage it from single place and all the tablets gets update.
Lets connect here to discuss and confirm our understanding so that we can deliver you best.
Look forward to get started as soon as awarded and will deliver best for you/your client.
Thank You,
CWE