Can you please give me rough estimate of parts/components cost for DIY? I am poor but I dream about GSX MKII lol I read on one forum I should not name from one of its members that its like "sandpaper" and that the member hates it,I consistently found that my taste is 180 degree opposite of that particular poster so for me that is like the greatest involuntary recommendation.Anyway,I would probably skip the expensive DACT stepped attenuator and use some decent cheaper conventional pot.So if we dont count the pot,how much do the parts cost? Please note I am from Europe. Also,I need the PCBs,I see that Jason/HeadAmp and Kevin Gilmore are Americans,I saw only Americans build this thing,its quite a American thing this GSX,,, Is there any way to get the PCBs in Eu and avoid the shipping? I believe its expensive to buy small amount of PCB so how often are these group buys for PCBs happening? Or does someone store the PCBs and sells them to individuals at any time? Also about the transistor matching,I read that it needs well matched transistors... cant I just buy already matched transistors? Is DMM and lab power supply enough to match the transistors or would I need oscilloscope or source measure unit?