Article Submission

I have 180 websites and i need articles submitted in article directories for all those websites. It's the same niche for all the (garage door service industry). I need the articles submitted to home improvement or home & garden categories in directories. Directories will have to be PR 2 and above directories. I will need it submitted to at least 300 directories so the odds of getting approved will be more. It will be same directories for each site. I'll provide keywords or anchor text to be used for linking purposes for each site.