$400 is thin, but I will play because I love these scenarios.
Assuming you need the knife and light:
Yes, the Shield-$286
20 rds of good SD Ammo-$12
Byrd Medowlark 2 Combo Edge by Spyderco-$27
Nightstick MT-210 single AA flashlight-$29.
This leaves you with $46 to scrounge up a holster of your choice.
Now, how I would do it:
Shield-$286
Sidecar Holster-$100
Ammo-$12
Bottle of Coconut Water-$2
Assuming you need the knife and light:
Yes, the Shield-$286
20 rds of good SD Ammo-$12
Byrd Medowlark 2 Combo Edge by Spyderco-$27
Nightstick MT-210 single AA flashlight-$29.
This leaves you with $46 to scrounge up a holster of your choice.
Now, how I would do it:
Shield-$286
Sidecar Holster-$100
Ammo-$12
Bottle of Coconut Water-$2


