Needs to be semi auto only, and feature and list compliant (please use the AW flowchart" to guide you!): http://www.calguns.net/caawid/flowchart.pdf
. Most of your questions are focused on areas addressed by the flowchart. I would highly recommend locating the a build party and attending one for your first build. "Mrlonewolf" on the forum frequently heads up build parties and is full of knowledge on building AK's.