If you thought i was making this post because i wanted to mass produce cloned hash boards and sell them for a profit because i claim to be able to produce them for cheap, then no, thats far from what i meant. I am aware thats not going to be at all profitable and moreover theres always a legal caveat to the story (which is why the companies tend to "modify" their clones instead of making a copy). I was more of planning to get back the ROI from the boards themselves by using them, if they worked of course.
It would have to be at least some light modifications made to the PCB because I don't think companies can get away with making a token change to some circuit. Which makes me wonder if the cloned PCBs you get from this will be as efficient as the original, since chances are the design houses will not make a perfect clone of the PCB. Maybe they'll do stuff like making some path longer (I think
I'm a developer, not an electrician or circuit designer) that makes some part of operation less efficient, to avoid infringing on some random company's IP.