Yes. I forged my Mandalorian Armor when I obtained from Jodo Kast. I created to my own liking. Fixed the blaster scorch marks. I weatherized so that my targets has no idea I am a Chiss. I am not a Mandalorian. But no one on my mission knew it was me.
My group knows that I, Thrawn, obtained the armor from Jodo Kast, who is not Mandalorian. I gave him a better reputation than his bravado. How do I know this? My group, SWAG77, spoke to the author Michael Stackpole on Instagram, recently.
At some point, my group will write a headcanon or fan-fiction.