Even having a hundred dollars or two a month would be nice
How about this. Send bitstreams to early adopters with understanding that they do not share the bitstream with anyone (unless you ever decide to make it public), and they send you the earnings from the delta for 2 weeks.
Example I have 11 Ztex 1.15y (44 LX150 chips total) currently at ~9.5 GH/s. If you make it 3x = 28.5 GH/s , i would gladly pay you 19 GH/s worth of mining proceeds for 2 weeks. I would in fact point the equivalent number of boards to a pool of your choosing. Thats $30.84/day from me alone at todays difficulty, maybe by the time ur done its $10/day... maybe lesser...
I am sure im not alone in accepting this kind of offer... but this requires a leap of faith on both sides. (You trust that i donate the promissed hashrate to you, and I trust that you dont have something evil like timebombs in the bitstream)...
^ If you decide to opensource it(and provide bitstream that works with ztex firmware) , id donate a months worth of extra hash rate.