Change user name in GMAIL bot needed

I have a bunch of gmail accounts with weird names and I am looking for a way to change them all. For example I have a gmail account with user name - crazy crack. I want it to show the name as miss daisy. The rest of the account information stays the same, just the name changes. *The bot has to have decaptcher support. *The bot has to be able to use proxies *preferably multithreaded but not a high reuirement. I don't want it to trigger any gmail ban/sms/captcha etc. so leave no foot print. Please only apply if you know what you're doing. it will be tested extensively to make sure all of the requirements are met before money is released.