Codecanyon Single Vendor Ecommerce App and Website Development Needed

Codecanyon Single Vendor Ecommerce App and Website Development Needed.
There should be Admin Panel, There should be buyer panel app, there should be delivery boy panel app.
On app, user should be able to see Products of nearest warehouse within specific distance only and for this, there should be an option in merchant panel to select working territory.

There should be live tracking of order.
There should be option to contact button on buyer app to contact delivery boy and merchant panel.
Source code will be our property.
All connections of Codecanyon should be disconnected from app and website source code and database.
There should be return refund request option in buyer panel and also same feature should be in API also.
On buyer app, all details of products should be displayed like Country of Origin, Product description, MRP, discount, sold by, category etc.
There should be discount coupon creation option in admin panel.
When buyer or delivery boy wi download our app, app should fetch their exact location and latitude longitude automatically.
When any new merchant is registered then panel should fetch their exact location and latitude longitude automatically.

There should be Google Location API implementation.