Develop a software for point of sale.

i want to build a custom point of sale software that works on a touch screen pc device that runs window 7. basically whats important is the ability to have membership card, its like a starbucks card where customer can top up the card with cash and use it as a payment in the future. so there should be a report for membership that shows a list of all the members, their purchase history, their car details, the personal details like address, phone numbers and amount of credit left. the checkout part, will have different payment method includes cash, credit card, member card, vouchers and points. and just because its a car wash service business. after checkout there should be a option to assign which staff or crew handles which services. theres going to be a lot of package and services so think of how to make this happen. report do include staff report to overview what the staff have worked on for commission. other than that, other features should work almost similar like retail, such as monthly sales report. during buy and sell, you get the option to add on various packages and items. # design are required to be simple. i need it wizard setup type, the type that i can get to install it to different softwares. and i need a license code that only i can have to make it a lifetime access otherwise other people who copy and paste and install the software won't be able to access without the code i have.