OP, buy a Colt or BCM (or Noveske, KAC, DD) and call it a day. Then I think you need to sit and read this forum for a good year before attempting a build of your own. There are many here (including myself) who have taken this tact and been very happy about it.
There are too many "this sounds cool" parts on your gun and not enough "this serves the purpose of the weapon" parts.
“Of all tyrannies, a tyranny exercised for the good of its victims may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron’s cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end, for they do so with the approval of their own conscience.”
-C S Lewis
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