I have an old UH083LC Hitachi that I am trying to sell, and a guy wants to buy it and export it, to do that it needs the serial number tag on it which of course got ripped off sometime in the last 20+ years. Catch is it is a grey market machine and the local dealer who sold it to me can't help, I keep hearing call Hitachi in japan. Does anyone have any ideas on this, or know who in japan to talk to?