I have checked in June 2015 in manual searching and nothing found. Ask him to give you a lot number atleast. Odometer reading is present in the Export Certificate of the last inspection performed which gives a slight idea if meter is tampered with or not. Dunno if accidental info would be present in the said certificate.
Other than that, if you are not able to receive proper answer other than 'Auction sheet too old and not available', best to avoid this purchase. I am sure there are numerous other vehicles available with other dealers WITH proper auction sheet. You should demand for it else not purchase the vehicle. That is the only way the dealers will bring good stuff with verifiable auction sheets.