Although it is a nice idea you are talking about a very complex theme with a lot of data and custom content to store, connect & manage. (even to achieve just parts of your suggestions).
This really would not be ideal for WordPress or the other CMS’s here and would require weeks of work, let alone the support which would inevitably (with that level of data being passed abput) become a nightmare.
It is very niche (As a custom job this would reach well into the several thousands of $ ) and history dictates that these do not sell that well in a marketplace like this so the likely return for what would be an astronomical amount of work is quite limited.
You can probably find someone who would do it for that price but
- they are not likely to be the kind of people you want coding it for you
- cutting corners in anyway is bad news for reaching TF standards
- as LubosVolovar rightfully said it is not only about coding it. How will you provide ongoing updates, support etc?
Too many people come here looking for quick fix or budget solutions but the truth is that those who make it work for them and who make the real money are committed to investing time and funds to do it right.
Your best option is to share a demo of the design here as then you will get advice as to if it is good enough for TF, people will have seen the design so you can refer back to it if someone rips it off, and also you are more likely to find the kind of devs you would want to work with.
There are not really many themes like this. you can check scripts like http://codecanyon.net/category/php-scripts?date=&platform=&price_max=&price_min=&rating_min=&sales=&sort=&term=social+network&utf8=%E2%9C%93&view=list
or try themes likehttp://themeforest.net/category/wordpress/buddypress
Either way it will probably take some customisation
Sorry but it is nowhere near.
The fundamental design is weak and outdated with improvements needed in every aspect from typography to padding, hierarchy etc.
It needs way more too it to be worthy of PSDs here. This is one of the most competitive categories and requires pixel perfect design and enough ‘to the design’ to warrant someone wanting to code it up