I am eager to get my hands dirty with this, however it does need to be done correctly or not at all.
I too have a pretty decent knowledge base when it comes to starting new businesses. I am currently the sole operator of a Import/Wholesale company which owns around 65 products including around half of which I have virtually designed/created on my own.
I would love to say 'I'll be an investors' but like any smart businessman, there is no way I am going to invest in something which at the moment has no projection at all to be a profitable business.
That's not to say that a little hard work can't bring it up to that point.
My suggestion is:
Get to work immediately on a SWOT analysis! - this means noting down ALL of the site's potential Strengths, Weaknesses, Opportunities and Threats. We then give each one a ranking based on how important it is, and then do a quick sum to make sure the Strengths and Opportunities outweigh the Weaknesses and Threats! If it does, then only Lack of time and effort can stop it becoming a success!
The next step would be to take the info from the SWOT analysis and include it ALL in a business plan. This has been mentioned before, but really needs to be done in depth and detail.
I personally have a fair bit of experience with others areas of business including Trademarks, Patents, Marketing and most importantly... Sales
So what I am saying is, I am happy to help get it moving, and if we have a potentially good business on our hands, invest!