174 short meta descriptions to work on and complete

Hi, google webmasters is showing 174 meta descriptions that are to short, we need these worked on to fluff out to 175 to 225 Characters keeping the google title keywords in the descriptions. Each description nees to be different.
Our cms system is very easy and stright forward to use and I can send screen shots for you to look at before bidding. I will give full training. This is a very easy job my estimation is 10 mins max per meta description.
Thanks
Karl.