Article writing and spinning

Most of the project is based on article writing for my main site as well as web 2.0 properties, link wheels and article submission. I am in need of "short" 150-500 word articles. Each needing to be spun. My spinning strategy is based on the senuke advanced spinning method, which can be found here: [[login to view URL]][1] [[login to view URL]][2] Each "short" article needs about 4 paragraphs with each paragraph needing a header and each header and paragraph should have 3 variations each. I will also be in need of longer articles 400-600 words in length. How long/how much would you estimate it would take to complete an article? Also how long would it take to create a spun version of each article using the brief format explained above?