Just noticed that AIM is advertising new CZ made CZ 52 magazines being available soon.
http://www.aimsurplus.com/product.aspx?item=MCZ52
http://www.aimsurplus.com/product.aspx?item=MCZ52
How about a unissued pistol to go with that Mag?
http://www.czechpoint-usa.com/products/vz-52/vz-52-pistol-unissued-condition/
The unissued ones were a lot more attractive when they were $119 with holster , 2 mags , lanyard and cleaning rod
For $305 I would make another choice for a pistol.