Build a multi vendor, multi outlet epos system, with web page copy of foodhub

I am looking for someone to build an EPOS system which is multi-outlet multi-vendor With car payment processing integration and continuing support and development.

The epos would be built for use at fast food outlets. Examples such XEPOS or Eposnow can be used for inspiration. FoodHub is the ideal example of what we are aiming for.

There should be an admin panel which is used for the purposes of managing subscriptions, these will be created for each outlet which uses the platform. Each outlet will have their own website (auto populated when subscription is created) this will be used for online ordering and orders coming out on the system.

Each store can have their own menu and own opening times. examples of this can be given.

Admin panel is used to manage the platform and subscripts.
Partner portal for restaurants to manage their business and orders and reporting.
Customer page for users to log in and order online for each business.
Epos screen which is used by employees to take orders from customers.

examples.
Dineorder
Foodhub
xepos
eposnow
eposhybrid

the ideal system would be a better version of Foodhub or dineorder.