It makes me wonder where Tenpenny Tower gets it stock and how they keep the place running. One of the ideas I had was that somebody like my character who lives there and is the adventuring type, maybe goes out into the Wasteland and scavanges valueable junk from the ruins to sell to the merchants. And of course Tenpenny hires mercenaries to serve as his security guards, maybe he hires some to go out and find valueable stuff for the residents too? Kind of like in the movie Land of the Dead where in Fiddler's Green (which Tenpenny Tower is based on) the old rich guy who ran the building hired poorer scavangers to go out and loot things from the zombie-infested city like liquor, cigars, food, clothes, etc.
As for repairing, I know this is stretching things a bit, but I thought maybe the scavanger who lives down the street in Lucky's might come into the tower occasionaly to fix things for the residents.