Crowdsourced collaborating script

Sik-inoV8 software requirements Im developing a business plan, and im looking for a Quote on the following. I need a script(if you have an already existing one that can be customized that is fine)almost like [login to view URL] or any other crowd-sourcing site. But this one should work something like this. 1- multiple users posts projects that needs funding, posting videos , pics whatever. 2- the Crowd will vote on the top 3 or how ever many projects, which will take them to the next level. 3- the crowd will now help add on to the project by adding feature they would like to see etc. This will also require a point feature that each crowd member will be scaled on. 4- once the 3rd step is complete the projects will be moved to the next level which is the funding level. So the will be people who sign up as "funders" they will only have a view of the project that made it to the 3rd step. 5- For The project that receives its required funding, a database of the funder,the crowd members that voted for the project and the users that posted the project must be stored to be used later to be able to view who was involved with each project. eg: excel since it can be integrated with things like project management systems etc. please reply and help me in any way possible even if it means recommending someone else. Thanks in advance.