Drupal 7 Donation Module

Our project is to enhance a basic drupal 7 module (see attached module). What we need is: Frontend - user displayed donation functionalities for enabled content types ie : donation button and amount field (The user can create content but shouldn't be able to specify an e-mail address or paypal url nor currency for paypal payment : this all should be managed in the backend) - donations list for logged in user (node id, node title, donation amount, ...) (integrate with views) - all donations list for all enabled content types node (integrate with views) - donor list for a specific node (name, user id, e-mail) (integrate with views) - prefilled user informations on paypal payment form (retrieving infos from profile fields) Backend Create an administration page to set up the module specifics : - Enable or disabled module for specific content types (checkboxes) - Manage module informations : e-mail address, paypal url, currency, admin messages Thank you in advance for a proposal. Cheers!