You're going to bankrupt yourself real quick. How many other companies (Anderson, PSA, BCA, etc) provide exactly what you're wanting to do? What exactly are you going to do that they don't? Why would I spend $500 on your upper when I can get an established company's for not that much more? ARs are not a plug and play system, no matter how much people think they are. There's a lot of minutiae involved with them