Show customer facing checkout on separate iPad

Show customer facing checkout on separate iPad that connects with MX Retail App

It would be nice to have an iPad out in the lane where the customers are so I don't have to turn my iPad around for their signature. The iPad facing the customer should have the following:

Total breakdown that they are paying for
Option to sign and tip
Receipt options (email, text, print, no receipt) where they can fill out the info themselves
Confirmation of completion page