If you know the original dealer, try contacting them. They may be able to
print another.

I'm not sure about the sticker itself but I believe you can get a "build
sheet" from the manufacturer which shows your exact car.
jor

It is unlikely that you will be able to get a copy of the vehicle's original
Monroney Label, a.k.a. window sticker unless the vehicle has not been
retailed yet, that is, still in a dealer's inventory.  The factor invoice is
basically a duplicate of the information on the Monroney Label, plus the
dealer invoice prices and minus the EPA info so a dealer may be willing to
dig up a copy for you.

The form that the Monroney Labels are printed on change from time to time
and although Toyota maintains the information that is printed on the label,
they do not maintain any inventory of old forms.