Classic don't mean the best. For that you get an alox cadet, farmer or pioneer and call it a day.
But the OP isn't really looking for the best...he is looking for "THE quintessential and most classic SAK available still".
I think we are missing his point.
He is not looking for a set of tools to use, he is looking for a "ideal SAK specimen" for his collection.
The "Platonic ideal SAK," as it were.
But guys, if you had to pick one, what is THE quintessential and most classic SAK available still? Not looking for a used. I want a classic example more as a collectibility thing but may carry it, maybe. Possibly.