Looking For a C96 / M712 4.5mm air pistol

Looking to buy a C96 / m712 4.5mm / .177 full metal blowback air pistol for my personal Collection. Either a KWC or an Umarex would be ideal; however, if you have a brand that i havent listed i am willing to talk as well as consider different prices. and willing to collect, providing a short distance.