Hesco plates- you probably don't need lvl4 so save eight with 3610's, ect.
HRT makes a decent plate carrier. No plate carrier with decent ceramic plates is going to be 'low profile' or 'concealable,' you'll be open carrying half your armory like a proud autist anyway. Get something made out of cordura, with the buckle system, and some decent padding.
Helmet- ACH if you must.
Consider if you're in good enough shape to move more than a few miles in all that shit. A chest or belt rig is more practical for light infantry field ops, imo
Lazers r the big gay, aim with your front sight as god intended. A light would be best for a HD weapon, or at least night sights. I personally prefer a fiber optic front, blacked out rears, weapon light. Langdon trigger-job in bag is worth it. Acquire a 20rd mag to start the party with.
VZ grips are good on 1911s, I'd image their 92 panels would also be grippy- wait for one of their holiday sales. If you draw from a holster, I prefer grip tape on the front strap instead of an over-molded grip, but then again I merely have Large hands.
Alternatively, save your pennies and spend on ammo, get good with your 92 as your iron-sight gun, and eventually get a 92x milled for an dot + trigger job straight from Langdon Tactical
20" chrome-lined HBAR
V7 inconel gas tube
Bipod
Binary trigger