Initial Website Development

I'm a programmer myself, but do not have time to work on this project at the moment. I'd like to know how much you would charge to build something like this to my specifications (detailed specifications to be provided after confidentiality agreement)

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In a nutshell,

- Registration/Profile/Feedback System (complexity similar to Linkedin, Facebook, Ebay)
- Internal Messaging/Chat System/Posting System (complexity similar to facebook and Ebay)
- Video conversion (backend video converting to standard format) (complexity similar to facebook, youtube)
- Administrative edits/modification UI (for customization, text inputs e.g. "about us")
- Determining proximity/location (using rough position via IP [I know this is very rough, and even inaccurate due to proxies], or given zip code (or city/state), or even exact address]
- Security of files/content (only designated people shall be able to download/view contents; e.g. paid members)

- Recommendation desired for credit card transactions provider (Credit card transaction is not required yet, but we may want to implement)
- Recommendation desired for webhosting or running own server
- Recommendation desired for advertising platform for revenue generation

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- Source code and all rights to the artifacts to be given; they shall be proprietary property of myself or my assigns
- Confidentiality Agreement to be signed (to not divulge or use concept/source of website once provided)