Fullstack project advice

Hi Guys I have a project that i am undertaking hence signing up to treehouse. I want to build a web app that does the following things. I have no idea which is the best webstack to use for this so i was wondering if i could get recommendations so i can focus my energy on the areas that will help me build this

In a brief summation what iwant to do is: • Have a central database in the cloud that users can look at any time and see what stock we have in the warehouse and review cost pricing and sell pricing • Customers place an orders through an app or web interface phone, tablet or PC • Employees from our company should be able to log in and review orders that customers place. • Our warehouse staff pick and pack the customer order from data displayed on tablets. Warehouse staff will update all information and print labels to attach to orders • Management will use the list of orders to specify delivery runs that delivery drivers will load onto their trucks. Drivers will use their phone/tablet to see what to load onto their trucks and then deliver to customers. • Orders that customers place could be converted to invoices and emailed to customers • Customers receive delivery and digitally sign on a tablet

Although it seems quite straight forward we would require special functionality with the system.

Any help / guidance will be appreciated