Hello,
i have read your project description, and i will complete your project within your budget and on time.
SOLUTION
-- i will design a payment form page that your client will fill when subscribing to membership on your website.
-- Then develop php script that will process the payment using stripe API.
-- Install in your website
-- Then finally, test it.
MY EXPERTISE:
-- PHP & MySQL
-- MVC Framework (Codeigniter, Laravel)
-- HTML5 & CSS3
-- Bootstrap
-- Javascript / Ajax / jQuery
-- Angularjs
-- Any API integration (Stripe, PayPal, Citygrid, Facebook etc)
So, kindly inbox me and let's get your project started.