Most people just use the artwork from their computer. You can order a test deck for $250 I think is what it costs and use that if you want a video of it. You can make a profit on Kickstarter. Look at the Blue Fontaines... over $67,000 raised from Kickstarter alone!??!?! A lot of people that sell cards on there though only make a few thousand dollars (if they are lucky). These people typically make their profit by selling their cards after the Kickstarter on websites. That is actually the entire goal of Kickstarter... It is not there to have you sell items and make a profit (though very possible that you will). It is there to help you kick start your work. In other words use it to raise the $7,000 needed to make the cards, and the rest of your money comes from selling the cards after.