I don't think the finances will make this feasible... It's not possible to "compete" with a mass produced product once they hit the market. so a small batch produced by a community isn't viable financially, plus someone still has to be the face of the project, legally, to enter into agreements with manufacturers etc... Unfortunately the days of making your own miner as a project are over. It's now more mainstream with several manufacturers.
Actually Sidehack already did some usb stick and everything was perfect. He now have a pick and place machine to be able to best faster.
Yeah its more hard to do it when you are not a big corporate but you can do a home miner
I have faith in kilo17 and Sidehack