Coupon Engine for a Joomla WebSite

Hello, Freelancer Comunity I'm developing a coupon website, based on Joomla. The website is on development phase, however it will be necessary to develop a coupon engine for the website, which will allow: 1) Include a new provider (restaurant, coffee shop, gym, petshop, etc), entering information like name, logo, address, longitude and latitude (for google map), etc. 2) Set a category for the new provider (3 categories: cheap, medium, expensive) 3) Set the discount rules for this provider 4) Set the number of coupons allowed to be used monthly for this provider (which can be 1 to unlimited) All these 4 points should be configurable. The user will purchase a subscription (from the 3 available subscriptions - cheap, medium, expensive). When accessing the page for each provider, he will see the provider details, and, if he has the correct category, he can generate coupon, untill the montly limit. In order to guide the work, I already did the design of ONE provider page, to be used as guideline. Cheers, Rafael