Build a Website

I need an automotive portal build on our wordpress server. This is an advertising portal and should include all functions including database creation Basic concept 1. Advertiser login and creation of account 2. Posting page and uploading of photos Backend 1. Manage advertiser accounts 2. Manage individual posting 3. Manage advertising banners and placement Theme The coding should confine to a theme that will be specified. There should be a CMS in place to do all this in one place.