extra ap hands?

does anyone know how often optional ap hands are sold and where? it looks like theyre sold out on faith-z. ty!

I am absolutely not an expert on Angel Philias, but from what I understand Faith-Z's parts depend on their shipment from the main AP guys? So random parts can come on sale, and you just have to keep an eye out for them. I don't know how it works for the Japanese dealers, however.