Here's an alternative suggestion - don't play a Rogue.Thief/assassin/arcanetrickster. Skills such as second-story work go against the character iam trying to build. Do I just ignore that part of the archetype? The character is supposed to be a geeky lockpicker who really enjoys the problem solving of traps, not a wall scaling, pocket picking thief who just happens to be good at locks/traps.
The character you describe could be a Fighter or a Bard or a Monk. A background (Guild Artisan, perhaps) can give you proficiency in thief's tools.
Rogues do not have to be thieves; thieves do not have to be Rogues.