I am making a Web Development Firm that develops and hosts websites. We want to use paypal as our billing system. We have 3 hosting solutions that are available on paypal. We have 4 website development solutions. Each of these require a 1 time fee with optional addons (that cost additional amounts). Each of these development solutions would also require a hosting plan. The development fees are 1 time but the hosting fees are monthly. How would i do this in paypal?