B2B Portal development using DNN

We would like to have a B2B style portal be done in DNN. There are already a few such portal sites out there like www.importers.com. Please visit this site to get an understanding of all the features that are there. Currently, we have got a DNN site ready with few third party DNN modules like Business Directory etc on it. It’s currently in the early Development phase (& 30% done) but below are some main pieces of work that need to be done which would require some help from an experience DNN developer: 1. Paypal integration (this is the core work of this project): So, a member will start with a FREE membership and can then to upgrade to paid membership. Reminders on the expiry of their paid memberships would be needed. 2. Restrict free members to use areas which are meant for PAID members only. So, basically Free members will see an "Access denied" style message on almost 70-80% of the site and the same message will also be asking them to upgrade to paid membership. 3. Use the SQL Grid view module or Reports module to display some 5 reports style pages. And also may be code 1-2 missing "SIMPLE" module to display some business tool style info, if needed. Thus this would require some custom Module implementation. 4. Bit of Graphics enhancements to make it look professional. Also repository module will be used in some 5-6 pages. 5. Add a "Country" DB table with small images stored in it and then display the same next to the member's details to show which country his Biz belongs to. 6. Enable localization on the site…so that for example Chinese can see the same site in their language. 7. Other miscellaneous small custom implementations (not listed above) if needed. 8. Support the site for first 1-2 months after going live. So, you would be in charge of taking the current phase of the site to complete the same within a month maximum. The URL of this development site will be provided along with it host id/password.