I am not going too deep in that direction but i would like to give a try and make one as an experiment. I need some general information on that topic. Any help would be apriciated.
Try this for 2.3.3 http://wordpress.org/latest-2.3.3.zip or change the numbers to the version you want.
There was a recent-ish thread on this topic. Marketing > Search Engine Optimization > Reload this Page Using Auto Blogging Softwares Mainly, that thread started with the question above of whether it was recommended to use automatic tools or if it gets banned or filtered by Google. But there was also a lot of discussion of various tools that will work to accomplish it. I've run an experiment perhaps like yours with Blogger and I talk more about how in that thread.