Copy for automatic content generation

I require some quality web copy writing for for the generation of a large number of unique web pages. I will supply a base article consisting of 5 short paragraphs, about 12 sentences and 250 words in total. Each sentence in the article must be written 20 times, retaining the same meaning but phrased in a sufficiently different fashion each time. Throughout the copy needs to be room for a number of interchangable 'variable' words, which will typically be: - Product Names (i.e Sony Laptop) - Category Name (i.e. Laptops) - Brand Name (i.e. PC World) The content itself is generic, so the sentences must make sense whether we're talking about laptops or lawnmowers (the product diversity is very, very wide). To clarify, you couldn't write: "This quality <insert variable here> has a great processer and handles spreadsheets with ease." Although this would work well so long as the variable was 'Sony Laptop', it wouldn't make sense if 'Bosch Lawnmower' was used instead. The following however would work for all examples: "You'll be impressed by the quality of this <insert variable here>." As a note, the general quality of the copy needs to be of a very good standard. I am in the process of putting together the base article; if you need to see this prior to bidding just let me know. Any other questions, please ask.