In need of a FXO 37 black base magazine

[Luke99]

Hello all! Title says it all. I'm in need of a magazine to match my 42 byf "black widow" luger. I'm looking for a decent quantity one. Doesn't need to ne museum grade or anything, just preferably not a corroded mess. I've looked around online and have only for some poor condition ones on ebay and a $800 one on gunbroker. Any help is appreciated.