The firewall is even stamped somewhat symmetrically, if you look at it it has the stamping put into it for the steering column. I don't see how it would be dangerous for this guy, considering he is driving on the correct side for the rhd. Even if he was driving on the incorrect side for rhd, I still don't see how its dangerous to drive. You just need to drive smart, like you should be in the first place. I converted my 521 but no factory parts were used, I'm not much help for you.