It's being gotten soon, trust me. I've got it all planned out in a way that no action can change anything.
And I assume that any puppet he's placed around is just that: a disposable puppet, so if Jon's fine with it, kill all the Maxwell puppets you like. I'm guessing he is, since Maxwell has never physically left the world of Don't Starve so far.
EDIT: Jon, please reduce the number of pieces Maxwell has to one. With how few pieces there are in total, more than one is just too many for a single world.