So write quick. Get the report done and set up a simple site to sell it own. Use paypal to accept payment and then you are ready to go. Start writing articles or doing whatever you can to get traffic to your site. The traffic you have, the more money you will make. Now if you price your report around $3, you would only need to sell 200 copies to make $600. And being that you are using the world wide web, 200 copies won't be very hard to sell.