Where the money will come from to pay for your wild ideas is always an issue. It tends to be done on the tax-payers dime. If not from some industry (with the documented problems). But, as I have mentioned earlier, one could try the fund-raiser/crowd sourcing path also. Here is a site – Crowd navigator – that aims to help with this. Click to the Blog also. A nice overview of the issues with funding, and what crowd sourcing may solve.