I need a little help from the Trek guru's. Im going to look at a Trek 970 road bike who the owner claims is the original paint but doesn't match the catalog or the table on the Vintage Trek site. Did trek ever do paint jobs different than the catalog? Like perhaps a custom or team or something? He also claims its Reynolds 753 and not Columbus. Sound fishy?

Sorry I dont have pics, if i snatch it up, ill post some later.
Thanks for your help!
WjV