I have done quite an extensive search and through searching I have found a source for A4 sized cardstock this site sells the paper as anime style comic book paper but believe me its cardstock and i have purchased alot already it may be a little more expensive than regular stock but you get what you pay for. The store is located in CA, they ship really fast (sometimes same day) and shipping is free if you can wait 7 days. So here the link hope this helps a few people http://www.akadot.co...ter-p-1013.html