An 8-inch offset press is enough. If you don't want to take other jobs outside, buy a second-hand offset press, because the test paper generally doesn't need color registration, and at most it is printed on the reverse side.

One-sided printing can use 60 grams of writing paper, and double-sided printing can use 70 grams of double-sided paper. A whole piece of paper can produce eight pieces of paper. You can ask the price of your paper company again and calculate the cost yourself.

In addition, you need to buy a folio paper cutter. Or find a relationship unit to cut it for you.