Not very techy, at all, as for inserting “Skywalker” in it … is it possible or helpful to remove or voice over him with a “new voice” and says whatever he says, but the “new voice” then uses the “Skywalker” line whenever. I would think that may help it sound more natural than how he sounds and then a random “Skywalker” that doesn’t quite match it?
I had considered this as well. The only problem is that whoever voice acts this would have to be proficient in their particular gibberish. Maybe it isn’t as complicated as it sounds?