goodroi - 12:26 pm on Dec 2, 2010 (gmt 0)
It appears you are basically asking if it is a good idea to republish a large amount of duplicate content. This is generally a bad idea.
I don't mean to be harsh but I see many flaws in this idea.
a) 200 words is not significant content (especially when its duplicate content)
b) computational linguistics tools often arent good enough
c) google has been dealing with this trick for over 5 years
d) managing 200k pages is very different from managing 1k pages
If you think this is a good idea then do a test run of 500 articles. This will help you identify how much unique content per page that google likes. How the internal navigation should be setup. Plus it will help you determine just how good your computational linguist program is (quality can vary widely).
I played around with this several years ago. I don't do it anymore because imho its more profitable to hire writers or develop UGC (user generated content).