I don't think you guys have all the bases covered...at bare minimum, you need:
1 18" pump shotgun for home defense
1 short-barreled shotgun for door breaching
1 shotgun with 30" competition barrel, 9-round extended mag tube, and modified loading port for faster reloads
2 budget AR-15 pattern rifles for parts in case of apocalypse
1 AR pistol with no stock, red dot, and suppressor for home defense
1 AR with magnified optic for compound perimeter defense
1 AR chambered in something like .450 Bushmaster in case you have to leave town for a restricted state
1 9mm submachine gun supressor host with pistol brace for home defense
1 .22LR scoped rifle for varmint/small game hunting and teaching your kids to shoot in apocalypse
1 scoped hunting rifle in any caliber for large game hunting in apocalypse
1 scoped rifle in .50 BMG, 45-70 Government, or equivalent caliber for destroying engine blocks of armed raiders, vigilantes, or rogue government assassin squads in apocalypse
1 pistol in each of the common calibers for ammo scavenging in apocalypse