Firstly you need to print your chosen Kin Herep, The thicker the card the better, i used 350gsm card for mine.
If you havn't already got it download Adobe Acrobat, its a free download, available HERE
Open up the PDF, and head for the print dialogue, although the pdf file is A4 (210 x 297) you can just center it and print on to US letter.
I printed mine using the digital laser printer at work. Which can handle very thick card. If your struggling, you can always print it onto paper, and paste it onto some card.