Update:
Picked up a second lower/trigger pack complete. Most likely trigger will be polished and replace the spring. Then the FA Binary trigger installed in the other one, but maybe not, haven't really committed to it but wanted to have the option.
Yeti Switchback, PMM rear sling mount, MagPul MLOK sling socket, Troy Battle Sights, HBI charging handle, HBI 6.84 hand guard, HBI 5.3 barrel, HBI aluminum duckbill mag release, (seeing a pattern here?), Magpul MLOK rail and covers, Gear Sector hand stop all installed.
SBR engraving (thanks Mark!).
SBR tax stamp purchased and submitted.
AAC Ti-Rant 45 purchased and waiting tax stamp to clear.
TBD - optic, light, light/laser.