Hi,
We are quite accustomed to [login to view URL], and have done a couple of projects which are somewhat along the same line. We agree that this should be custom built with PHP-MySQL and not with any sort of CMS.
Also, you are absolutely spot on about the Admin Interface. You will need it for moderating the posts, deleting spam users, get access to reports about user sign-ups & new postings etc.
About the time, there is an issue. 7 days is too low. If you want quality work with proper error checks & testing, then the minimum time required would be like 3 weeks. Please remember, we are not talking about copy-pasting a Joomla or Wordpress tamplate. We are talking about a "custom made" site.
If you choose us, we will do the Database Design & SQL in 2 days, Basic Layout & CSS in 3 days, Work on your Feedback of Layout in 2 days, Frontend coding in 7 days, Backend (Admin Panel) coding in 2 days and Testing & Configuration in 2 days. That's 18 working days in total.
As we move along any project deadline, we constantly keep the client updated about the progress and send him direct link to our development server where he can see the work done till that point of time. If you choose us, your project won't be any exception.
We are one of the Top Rated coders in Freelancer with reputation of 4.9, more than 200+ positive reviews & 92% completion rate. We are also one of the very few “Certified Professional" in PHP, Computer Graphics, XHTML, HTML & SQL.
Thanks,
Dilip