Good advice in here but where's the pricing? A good basic set up you could aim for -
-PVS14 gen 3 (Elbit or L3 Harris in white phosphorous with SNR above 30, FOM above 2000 = $2900 to $3800)
-Head gear (Opscore or Team Wendy bump helmet = $400 to $500. Ballistic gets you to $1000 to $1500)
-Mount that connects J arm to head gear (Wilcox G24, Norotos LoSto, old school rhino mount = $30 to $500)
-J arm that connects PVS14 to mount (Ax14 pro = $140)
Most PVS14 come with head gear and j arm so you can spend as little as $2900 and be very nvg capable. Ultimatenightvision.com sells comm spec L3 Harris PVS14 every month that are really good but have visible blems. They sell out within 24 hours.
Enhance your setup with-
-LAM or laser aiming module mounted on your rifle. You can squeeze by with only need an IR laser but most people also want an illuminator for PID (lots of options but you'll probably spend $1000 to $1800)
-Passive aiming solution to allow you to shoot without a IR signature (Exps3-0 plus a riser is considered gold standard = $800).
-Helmet mounted IR flashlight (up to $400 for a S&S Max precision with SureFire IR/white head)
-Helmet mounted admin light (Princeton Tec MPLS is popular for $60)
-Rifle mounted white light (Cloud Rein 3.0, SureFire M640DFT come to mind at around $275 to $300).
-Helmet mounted ear pro (Ops core amps or Peltor Comm tac for Gucci option = $500 to $1000
It would be really easy to $10k on all of this but you can spend less if you buy stuff second hand. Why get night vision? Cause it's cool AF. If you've never seen or used nvg then you'll be blown away by its abilities. It's a serious force multiplier. This guy, Hop, has really good info on all things NVG and thermal related.
View: https://youtube.com/playlist?list=PL1fZg4dsENUk-QwGs0VdW9_-I_QO_Ongm&si=DPurvfcbLUi6ZyO4