Welcome, glad you joined us.
1-I use the cheapest copy paper I can find.
2-I have made my own papers, also have copied patterns, but either enlarged/shrunk the pattern.
3-not sure what you're talking about.
4-have never taken any kind of quilting class.
5-yes, I make a master copy, keeping it intact, cut the copy into the required sections, tape that onto another sheet of paper and make copies that way.