Billing, ordering, delivery pos app for windows pc, android with iphone -- 2

All the features needed are with the attached document kindly read it before bidding on this project, Kindly see the budget of this project before posting your bids, if you want more than the upper limit of this project kindly do not post a bid Here is the document [login to view URL] I need a desktop native app ie a dotnet app either using c++ or c# as the main pos if you don't know or work with it kindly do not post a bid