For ruble definitely apocalyptic mojave,new vegas post apocalyptic and rusted highways
For armor i would go for spice of life,wasteland soldier,Couriers Cache (includes some weapons like homemade flametrhower)
For weapons some homemade ones are included in project nevada
For mechanics i would go with realistic weapon damage so you could feel woulnerable most of time
And of course for music i would recommend fallout 1&2 ambient music or DV's Custom Soundtrack
Also for pure immersion i recommend mojave sandy desert, nevada skies,
For character scarred race surgical scar plugin (so you can actually look like you were shot in the head) and killing karma reward (now killing bandits and ghouls in self defense wont make you mojave saint)
Well thats what came to my head pick what you wan and have fun
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"For the Emperor and Sanguinius! Death! DEATH!"