Yikes!, we can't even get two Strats or Les Pauls to sound the same, even with identical pickups, we can't get two vintage JCM800s or Deluxe Reverbs to sound the same, here we are trying to get digital machines to sound identical to ALL tube amps.
But, if a pro studio engineer took a KPA Profile, recorded with it, pre and post processed it, would you be able to tell with 100% certainty that it wasn't a real tube amp that was used?