Hello. If you really need it, I can give you a contact of the Slavich dealer in Moscow. It is possible he will be able to send you the required amount of paper. Write me in a private chat.
Here are the contacts for buying Slavich paper:
mr. Vladimir Kozlov
whatsapp: +7 915 368-88-62
email: vkozlov68@mail.ru
I bought the high speed reversal paper "Minute" from him (which was repackaged under the "Galaxy" brand). Much cheaper than it offered the infamous Galaxy)))