Break;down Off Vocal

MelonChanS

Momo's Minion
I recently have gotten back into Utau, and decided I wanted to use Sukone Tei and make covers with her.

The first song I have been working with is Break;down by htmk, which I felt really suited Sukone's personality and voice, but I've ran into trouble. I can't find an instrumental or off vocal for it anywhere!

I tried making my own off vocal using audacity but it produced uh.... bad results.

Does anyone know if an off vocal for Break;down is available? Or give me tips on how to better create one if there is none?
Sorry if this is the wrong thread but I saw others posting here about finding off vocals and thought it may fit.