You could try just using Fiona Shaw’s delivery of the line where she says “F*** the Empire” in an interview with Variety. I’ve had it saved on my computer forever. Not sure if the tone of her delivery would work, but it’s worth trying since it’s an authentic delivery. Here ya go!
https://drive.google.com/file/d/1FDEE0U0ZL9hYIRSO032Jhdt3HGKuMmU6/view?usp=sharing