[Please help] Stock ROM with multi-language? topic

Hi guys,
My cousin bought an S5 model SM-G900T from America and brought it to Denmark. He does not know alot about rooting etc and just wants stock with Danish language. Is there any way/current stock ROM with Danish system language integrated?
Since he does not know about xda etc I want to have stability as highest priority, so closest to stock as possible.Hoping someone can help.
Thanks in advance.