Final processor question

I have a Voicelive3 and am in a duo. I want my singer to have the vocal effects I have but she doesn't need to put a guitar through it. But the new device needs to know what chords I'm playing to get the harmonies right. I can provide a dual feed to both devices but I don't want the guitar to make it to the PA because that's coming from my voicelive3.

What do you suggest? A  Harmony Singer 2 Vocal Processor and Harmony Generator Floor Pedal perhaps?