The original version does not offer uncompressed RAW. Anyway, you need to allow for the correction in the RAW converter.
I'm actually not that impressed by the build quality. I have had mine (RX1R) for a bit more than two years, and it has a dent on the manual focus ring that affects the MF smoothness (this was apparently caused by the weight of the M8 on top of it in my shoulder bag!) and recently I noticed a crack on the backside of the camera. I have no idea where that could have come from. The camera has never been dropped or banged heavily against anything, although I have used it a lot.