Tique, last year there were no duties on the orders from Swiss-knife.com. I do not know the situation right now, but I doubt if there are any.
AllenC, the red alox scaled Pioneers are not produced any more. The current line is silver alox scaled. Out there the Pioneer is not a particular model, but a whole line of checkered silver alox scaled knives, except the Soldier. You can have one or two bladed knives, knives with pruner or electrician (sheepfoot + wire cutter notch) blades, saw, awl, openers + screwdrivers in many combinations.
The Farmer was a red alox scaled knife which featured the blades/implements of the soldier + a saw.
If I remember correctly, the Cowboy has cellidor or nylon scales.
Mnblade, you are right. I have just checked the free engraving option at Swiss-knife.com. It is available only for the cellidor knives.