where did you get your instructions for your build? I have an AK that i need to change the barrel of and I am looking to see how the barrel is installed to see if I can change it out myself (hence good directions) and how easy the process is to reverse to take the barrel out of a completed gun. Or if I should just buy a whole new AK or maybe SKS. Also for those of you that did build where did you get your parts? Is there a website that isn't an auction that i can buy parts from?