Interface sound redirection?

[Rhamos Vhailejh]

How would I go about changing the Undead's interface responses to the Naga ones (ie; "We need more Coral Beds" vs. "Summon more Ziggurats")? I've noticed in the sound editor that there is an entire interface sound set for the Naga, so is there any way I can direct the Undead interface sound set to the Naga sound set without having to export the entire Naga sound set and then reimport it overwriting the Undead ones? That would seem like an awful waste of space, considering those files are all already in the MPQ to begin with.