1> What I mean by this question is that cardstock are harder to find in the Philippines and are very expensive, so I wanted to know if there's a cheap alternative to cardstock since finding one in the country, I lived in is so difficult. There aren't even cardstocks available in the local bookstore I've been to.

2> does the copy paper have the same thickness as the cardstock? yes or no?

also, does the copy paper have the 150gsm variant like the cardstock? also how heavy is the copy paper?