Categorised Drupal Classified Website

We are converting an existing Classified website writing in php to a Drupal enabled site A user post items he wants to give or looking for free and other users offer to give the item or take the items. The user who posted the item select a winner from the list of users who requested/offer to give the item This is the summary of the expected functionalities: 1.1 Drag, minimize and moveable frames 1.2 Menu 1.3 Slick Logo 1.4 Banners with flash images 1.5 Data Migration 1.6 File Migration 1.7 Theme Administration 2 Home Page 2.1 Locations of Items or user 2.1.1 The URL based on the Location of user 2.1.2 The URL based of the user activities 2.2 Categorised Images 2.3 The main contents of the homepage 2.3.1 Latest wanted items posted in the country/region of the user 2.3.2 Acceptance of cookies 2.3.3 Latest offered items posted in the country/region of the user 2.3.4 Most visited items posted in the region/country of the user 2.3.5 Most requested items 2.3.6 Wanted items 2.3.7 Offered items 2.3.8 Registration widget 2.3.9 Sign in widget 2.3.10 Top Group / Group of the month 2.3.11 Search form 2.3.12 Google Map 2.3.13 Visit other regions 3 Sign up / Register page 3.1 Edit Users details 3.2 Change Password 3.3 Forgot Password 4 Posting an Item 5 Closing of Item 6 Wanted Item Process 7 Offered Item Process 8 Item Page 9 Edit an Item Page 10 View list of Interest and select a winning bid 11 Searching for an item 12 Advanced Search 13 Browse Page 14 Invite Page 15 Group and Cities 15.1 Create new group and cities 15.2 Group Administration and privileges 15.3 Group page 15.4 Join a Group and role of a user 16 Searching for a group 17 Group Display 18 Feedback/Rate the user page 19 User Profile Page 20 Administrator Page 20.1 Operation 20.2 Web Administration 21 My Settings page 22 Mail Page 23 Taking an item 24 Email Functionalities 25 Social Media 26 Receive a Badge