I am looking for a coder who can create a tool similar to the estimate tool found on the rankpay site. Go to rankpay [dot] com and plug in a url and a keyword and the site will quote you a price. I am looking for a similar tool. I believe you will need to utilize the seomoz and google api's to perform the analysis. I can provide you with some calculations as well. Please PM me your offer if you can do the work.