agreed
its not as bad as it seems. it's just obvious in your case, because of the dash. and a bit of a pain really, coz its the wrong one.
but all of us pretty much realise that our km's arent accurate. so its always recommended you do timing belt and full service on an import. just for peace of mind.
occasionally you'll find someone who brags about their 60,000km s2 r33, and i just think, really? you believe that?
if the car is in good condition, and it runs well, shows no symptons of issues, i'd say just keep it. maybe look into swapping the dash out for a manual dash with similar kms as is on your paperwork.