Wordpress "the reader tags" website

Hi Guys, I am developing a new project on which the actual readers can tag a specific post that I create. However, they can only pick tags from a list that is already available (created by the admins). 1 - Admins create tags using the normal feature on the wordpress control panel. 2 - When creating a new post, admins can pick which tags will be visible for the readers. This means that only a specific set of tags will be associated to each post, not all tags! 3 - When reading the post, readers can see the set of tags available and click on the ones that they think are suitable. For example, a post has 5 tags (words) available. After reading the article, the user will be prompted to tag it. He can then for example click on 2 of the 5 tags. Tags should look like buttons in pink or purple colour, and when reader clicks it, it will change to blue. 4 - On the post page, the reader should be able to see the current stats for that post, in a tag cloud, but also with the percentages of clicks. Only one click per user should be accounted, obviously. 5 - I want to be able to use these stats throughout the side, in pieces of code that you will develop. For example: the top 5 most used tags, the most rated posts, the most rate posts for the past X days, the less rated posts, a tag cloud for a specific category, etc. The homepage should be packed with these kind of stats. This system should be totally integrated with wordpress posts, categories, etc, as you can see. This will be a on-going project, and for that reason the winning bidder should be available to work on new customizations and new upgrades on the system, in future time. This is not a one-off project, there's the potential for a lasting working relationship. I would appreciate that only users with relevant portfolio (in wordpress) bid on this project. Other users will be ignored. I am looking for people that are genuine, communicative, with good level of english, and very honest. We are web entrepreneurs, and trust is a very important word for us. We are looking for great wordpress developers. If you provide us with a good service, we will most likely hire you for other projects. Thanks in advance! Rui