So, let's say I buy a stripped lower, what next? Spare me the details, but what are the key components needed to build an AR? I mean, are we talking about spending hours searching the web and online courses, looking for screws, springs, bolts, etc.? Or can it be done like a kit, as in A+B+C+D=EBR? Also, what is the cost involved for building an AR with factory new parts from retail sources? I just want to make sure I was not about to jump in over my head.