Recoloring the armor with new dubs is the best idea (thanks for volunteering, AbramsPt!), but I have a feeling it will require more than just a power mask in AE. It will probably require fully rotoscoping each shot in Mocha. That would be a ton of work for what, for me, would not be a huge payoff.
I’m not even sure how I feel about completely removing Gwendoline Christie’s voice. I can try a test in the future, though, when I have more time. Right now, work is very busy!
Thanks for the suggestions!