We need two misc items and a weapon set for this, Here is a idea for this.

"The Average Psycho Of Arizona"

Misc

"The Killer's Cut" (THIS) - Very psycho needs a slick cut.
"The Dusty Trenchcoat" - God, Arizona is one dusty place.
"The Space Freak" - Gotta support the aliens.

Weapons

"The Second Amendment" (Postal 2's Hunting Rifle) - God bless our amendments.
"The Semi-Auto" (Postal's MP5) - Who cares which setting this weapon is in.
"The Rusty Shovel" - Gotta make a hole for these dead morons.

Enjoy pal.