Build an payed Online membership site - 1

Need a php or wordpress based membership program created – I prefer php html over wordpress, but if you have a faster, easier way please let me know I have a site coded in bootstraps 3.x, php, html, css, js ready now --> [login to view URL] The membership program will be a login and click to use coupon – do not need to have geo location 1 – paid membership a) front end – open to any gateway, NOT PAYPAL, and must not redirected, transaction must take place on the site b) back end – must be available to track each payment, user information like email, number, email 2 – inside membership a) front end – all wording and images will be the same in each account b) back end – need to be able to add new pictures and text to all accounts – also add new coupons, and track used coupons 2 – vouchers redemption / using coupons a) front end – coupons will have a simple one click to redeem, and then be voided from that membership – it can only be used once, then the coupon must be marked “USED” b) back end – must be able to see user and the coupons they have clicked, when they have clicked and used, and how many they have left to use i can build out front end - need the back end to work - membership, payment gateway, updating - i can even provide design the backend, but need it to work