Having bought and sold a zillion of these, on and off feebay, I would generally agree.
Having said that, I've *never* come across a single one that had antennae messed up, which is pretty much all the OP needs.
Good units are becoming harder to find. Lots of sellers advertise 'A31P', but on closer examination it turns out to be just a regular A31.
For just the antenna wires you could just buy a complete A31 screen also, but make sure the seller confirms that it has the antenna wires.
You could also use antenna wires from another computer also. As long as the connectors fit on the mini-pci card and the wires are long enough you can run them up the side of the screen. The one that goes on the right side of the screen needs to be a lot longer, because it has to run all the way along the bottom of the screen to were the wires come out on the left side.
To run the wire on the main board you still have to remove the bracket for the CPU fan, the bracket for the screen connector, the piece in between the ultrabays and the right ultrabay itself.