interactive site like social network with billing

Avg Bid (USD)
Project Budget (USD)
$1000 - $5000

Project Description:
I am interested in creating a website/social network with some features below but not limited to:

1) membership sign up
members sign up anonymously but do provide billing info which cannot be seen by anyone except administrator(s)
2) members pay $4.99 with one month free trial
3) members can ask a 500 character questions for 19.99.
there will be an answer within 48 hours
each additional question will be charged $19.99
other members can see questions and answers, comment on them
members can ask & answer questions to each other for free
4) “must accept” pop up disclaimer for any visitor or member each time to sign up
5) 3-8 separate chat rooms (scalable, start with one)
6) sophisticated admin options: unlimited number of moderators for each chat room, passwords, general administrators, stats, ability to assess each moderator’s work (number of questions answered, ratings from members), payments to administrators via credit cards and paypal etc
7) major credit card, paypal acceptance

thank you,
Look forward to your response and detailed quote.

Skills required:
Graphic Design, HTML, MySQL, PHP, Website Design
About the employer:
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