New CMS Website

I am looking for a freelancer to work with me to design and build a new Company Website. The current website site is based on a proprietary CMS ([login to view URL]). I would like to work with someone to develop a new site based on Drupal very similar to what we already have in terms of design and layout (minor changes required). In additional to this, the website will need to have the following features: 1. Customers should be able to go on to the website and register for events through an online form (which the admin can create for each new company event). 2. When the Customer registers, this information is to be stored in a format that can be extracted as a .csv file. 3. Once the registration form is submitted, the Customer should also receive an email confirming their registration. 4. The Customer should also receive a calendar appointment (e.g. Outlook appointment) 5. I also would like to enable Customers to download documents I have uploaded, but i would want them to fill in a contact details form before allowing them to download the file. 6. The marketing Team should be able to design and create the forms, automatic email responses and automatic calendar appointments - this may be a standard template. 7. There should be a secure area for Staff who should be able to login using their Active Directory login details. this secure area will only contain links to useful company urls. If you need further information, please let me know. Many thanks, Punit