SKYRIM - Get Thieves Guild armor without joining the Thieves Guild!

I want Thieves Guild armor, but I don't actually want to join the Thieves Guild.  However, since I play on XBOX 360 and can't use mods or console commands, that's not possible.  OR IS IT?  Spoilers: it totally is.

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• #gaming
• #skyrim
• #the_elder_scrolls_v_skyrim_video_game
• #video_game_industry
• #thieves_guild