Supposedly the keyboard will correspond to the country it is purchased in. You can't out stickers on it but if you are a touch typist used to different keyboard you should be able to adapt (I personally switch my keyboard configuration regularly as I route in three languages and basically "ignore" the symbol/letter margins when it is the "wrong" layout.
If you are not a touch typist (And find memorizing the layout a challenge) I suggest you buy it locally.
P.s.
If buying it locally is not a viable option for whatever reason, You could potentially have some luck with a clear self adhesive plastic sheet which you could stick on top with the alternate layout written with permanent marker (or find someone to print out something similar on thin self-adhesive plastic/vynil). The stylus should still work and hopefully the ink from the marker wouldn't be bumpy enough to affect the writing experience.