My wife wants an AR ... her own AR .... in the worst way. She even got on the Bownell's website today and started messing around with builds. She asked me tons of questions and while I could tell her you need this and that for parts I got to wondering what is important in terms of not skimping and what can you do to keep costs down? Since this a gun she will love to shoot and call her own she probably isn't going to be putting tons of lead downrange nor is she going to be shooting it more than 200 yards. I've thought about buying used but she has a bee under her saddle blanket to build her own (I've got a great wife :thumbup. So, I came to the conclusion that a good barrel and a good bolt/BCG are probably areas not to skimp on, a free float forearm is nice but not necessary, and grips and stocks can go on the value side of the equation. Thoughts? Other than the Brownells website what other websites are out there for looking over parts and making comparisons? Also, if you build your own how do you make sure it's headspaced correctly?