The idea behind the lines were that you could construct them by combining words from other lines. “As you wish”, “Captain Solo”, “Skywalker”, “I want him alive”, and “bounty hunter” are things the respective characters have said before.
Off the top of my head I don’t remember when Vader said, “will come for”, though.
These days I think we can use AI tools to voice both Vader and either of the two Fetts