Someone who can do keyword research, please PM me your rate per keyword. You must have a previous work.
I have been doing keyword research and analysis for years... but never as a service... I don't quite see how to calculate it based on a per keyword rate. I could offer you all the keyword research and consultation you need for $400 a month if that interests you? If not, maybe you could be more specific about what you're looking to spend and what you're expecting or hoping to receive.