Another good start point is several millions of dollars.
...
You heard it guys! buy boatloads of 1200w PSU boards from the guy to fund the Community Miner.... Like a gazillion of them. (Have 3 of them powering 6 S5 and they chug along rather nicely, pretty solid PSU and board).
Now speaking seriously, unless we get an angel investor and someone with the know-how of ASIC development on board, dreaming about a community ASIC is just that, a dream.
A problem is not a solid, hard entity stood by itself, A problem is a perception of a situation made by us and labeled "A Problem".
Now being more (just a little more) specific:
In sidehack's community miner project case, the situation is not just a regenerated copy of the old story about poor genius people with promising ideas, seeking an angel. more complicated, far more complicated, ...
First: we have Bitcoin with a total of 10 billion dollars of market-cap which is absolutely in danger because it is inherently designed to be a peer to peer decentralized network of computers with (almost) a normal distribution of hashing power. The ASIC attack to Blockchain protocol in last few years has put it in danger, and remember we are talking about 10 billion dollars worth of assets in danger.
Second: One should notice that it is not just about assets and money, it is about a dream and an enthusiastic community of believers. Right or wrong there are thousands and millions of people who care about the technology behind Bitcoin (like you and me), let's speak frankly about myself: I think if there exists a small window to freedom for humanity in contemporary history, it is definitively opened by Blockchain, and I'm not alone.
Third: Blockchain is about connecting people. money transfer transactions is just sample (an important one though), it can be and is used for more complicated problems, cooperation being one of them.
And finally my solution: I think it is absolutely possible to raise money for a community miner project supervised by sidehack following this procedure:
1- We can implement a cooperative DAO like protocol on top of Blockchain in few weeks, not necessarily a full automatic , autonomous, trust-less, ...
Utopia like what Ethereum people were trying to implement and failed. At least for the start, there should be no reluctance of 'mixing' things up, using some human specific and non-mathematical objects like, hope, trust, help, swearing to god, good faith, etc.
2- We can establish first sample of such a semi-autonomous organization using our protocol with , say, 100-200 crazy people like me (and you?) , I call it NOAH project (thunder is coming )
3- at first, NOAH recruits sidehack as its CTO or whatever, he redefines the project in a more economic way with more practical business targets, NOAH finances the project.
4- meanwhile, NOAH studies and selects regions and countries (like mine ) with good opportunities both in terms of electricity costs and availability of dedicated people for cooperation and investment, forms joint ventures with them, technically and financially supports them to use refurbished and retired miners (being reasonably cheap thus having good ROI if cheap electricity is available too)
5- NOAH waits and prays for its first fully custom designed community miner to blow the 800 lbs gorilla.