While you could produce a pcb artwork using open source tools you probably will produce one or two boards ($100 each) for testing before producing a (small) series which is quite costly. Then you need a ful version of quartus(42500) to produce the bitstream. Then you need someone whos assemles the boards for you which isn't (as far i know) so trivial due to high ball count and the 'heavy' metal heat spreader.
5 of them. This may have been a mistake, but that's alright. What I really need is a PCB design. I've read all the specs for these and I really don't have the technical capabilities to design the PCB. I just just don't know what a platform for mining really requires with regards to components. Can someone help me out with that?