Comment posting on dofollow-blogs

I need some help with comment posting on dofollow-blogs. This is a trial project where I need 25 comments posted for each of two sites = 50 comments in total. I expect you to find the dofollow-blogs yourself, and I expect you to be able to post decent comments related to the content. Not just "Nice blog. Thanks"-comments. No autoposting of the same comment over and over. Please let the price reflect this. Please give me a price per comment, and I will pay you for each approved comment that is not deleted by the blog owner.