I'd waste a roster spot on him by keeping 2 kickers just for that reason.
If Dallas can afford to have 2 kickers (1 for field goals, 1 for kickoffs) I don't see why we couldn't.
Dallas doesn't have holes like us on the O-line and a 3-4 defense that can actually perform. Don't let that divisional round playoff game or their defeat against us fool you, they run this type of defense a lot better than we can ever achieve to.