i think at the moment WEM is short on the PE frets, but if you place an order, they should inform you that they will prepare new parts asap. So did they do for my order of PE for Gato..
still waiting for them though, they charged me, however returned my money, and they promised to inform me when parts will be ready. If not, i will give them a nudge in a week or two...
though i recommend to contact them first.
M