Sorry, but for what it's worth, this is not customary and since you have already declared you don't have any experience developing anything (let alone HDL or boards with high end FPGA on them), asking for 80BTC in donations might diminish people confidence in you.

You may want to defer asking for donations until you have demonstrated that your plan is more fully thought through, and that you have the capability to produce something.  There is already a lot of people on here angry at multiple organizations for taking their money and not producing anything 6 months / 1 year / 18 months later.

Again, IMHO, you don't actually need to have physical hardware until you want to establish the (marginal) performance gains you'll get through overclocking/cooling in the real world.  Under normal conditions, the reports from the tools are accurate enough.