I'm a fan of Arsenal AK's, but that's mostly because they work and the overwhelming majority have been properly manufactured.
It is possible to obtain a WASR that was put together correctly, but in order to know this, you actually have to lay your hands on it.
For that matter, any rifle you'd trust your life to should have been hand inspected by numero uno.
I wouldn't get hung up on the furniture. You can get wood if you really need it, but there's nothing wrong with plastic.