i need a lil help. what are all of the unique items and where can i find them. oh, and wheres the guy with the sunset sasparilla star caps in the factory?

Umm, finding all of the unique items would take a long time, assuming your talking about weapons, armor, etc. But there's a list of all of them here along with their locations. http://fallout.wikia.com/wiki/Fallout:_New_Vegas_weapons and http://fallout.wikia.com/wiki/Fallout:_New_Vegas_armor_and_clothing. And you find the guy (who is actually a robot) right at the front entrance of the factory to the left.