Looks good, I think she is a keeper . For just a blaster upper, I would suggest CMMG, Del-Ton, and DoubleStar as good parts. For defensive/heavy work, I would suggest an upper from Bravo Company. They are a true defensive quality upper with a reasonable price tag. I would skip the Chrome BCG unless you want it for looks. Regular M16 BCG should work great, if you really want something special/durable, look at the Fail Zero BCG and Hammer. I know someone who has 2000rds through the FZ BCG both suppressed and unsuppressed in an SBR without cleaning nor malfunction. I would not own an AR that is not chrome lined except for a stainless barrel. For Quad Rails, I would go LaRue, Daniel Defense, or Knights. RAS systems can be had for really cheap used, and while they are not free-floating, they are quite durable. Stay away from Mako and Tapco. For BUIS, MagPul MBUS, YHM, MI are good budget systems. I wouldn't trade my Troy set for the world though, they are awesome.