If you buy the Pheon decals you will not be disappointed and will probably be tempted to build another Pfalz.

The extras can go into your spares, used in experiments (always experiment before trying something new on your model!) or traded. Rowan is a friend of this forum and WWI aircraft modelling and worthy of our support. IMO.
My opinion on the masks is that if you are sufficiently advanced to use them it's not much of a leap to make your own. Also IMO
