In theory I like the idea of there being layers, and something hidden to art, so given the symbolism and foreign characters of Gallifreyan text (new or old), I like the idea that it could be a chance to have geek within geek. Like a Gallifreyan: “Han Shot First”, or “You can’t take the sky from me”, etc. The translation and appearance would be another matter.
On another note, a K-9 could be a nice, small, companion for your robot.