Website similar to Pinterest

Avg Bid (AUD)
Project Budget (AUD)
$3000 - $5000

Project Description:
I would like to develop a gift registry website similar to Pinterest in functionality. It will essentially allow users to create an account, log in, and save a variety of items from any online shop on the internet to a Wish List. Would be good to have multiple wish lists the way Pinterest has multiple boards, and allow the user to save a list description.
This Wish List would then be viewable either publicly or via password protection (user's choice).
Anyone who views the wish list would be able to select a gift and mark it as purchased, without having to create an account or log in, in a similar way to leaving a comment on a blog post. They should be able to leave a name and comment.
I would also like the functionality for viewers to donate to a Paypal account - so they can either provide money for the item on the wish list, or purchase it online, and let the List owner know that it has been purchased. When the item has been marked as purchased, it should be greyed out or similar so other viewers know it is purchased.

I am open to what sort of back-end admin/CMS is used.

Additional Project Description:
01/21/2013 at 5:57 EST
This is not a social networking site. I do not require "Follow" or "Friend" functionality, or Inbox/Message function.

01/21/2013 at 6:05 EST
It must have a Bookmarklet tool for users to add items to their wish lists from other websites.

Skills required:
Graphic Design, HTML, MySQL, PHP, Pinterest
About the employer:
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.

$ 5000
in 35 days
$ 4650
in 45 days
$ 5000
in 60 days
$ 4000
in 30 days
$ 5000
in 55 days
$ 5000
in 50 days
$ 4997
in 60 days
$ 5000
in 45 days
$ 5250
in 50 days
$ 3900
in 30 days