Mardrignac

Hello everybody,I hope someone is able to help me.My Lupo 1.2TDI CY 2002 needs a new rear axle and I am currently looking for a "new" one. However, it seems to be VERY difficult to find one.My question is: Can someone tell if it is possible to replace my current 1.2 TDI rear axle (drum brake, ABS) with a rear axle from another vehicle or does it have to be exactly this 1.2 TDI rear axle?