If you can't find one
You should be able to get one through P1 given enough time.
Or
Just bite the bullet and pay the shipping. Hopefully it will be USPS and you won't get dinged.
My speaker panels came thru fine.
Just buy 2 now as they will just be more later.
I just shipped 25 metal Warhammer figs to Austrailia and it was $125
Count your blessings.