Hi Charles,
There an article that showed up on hacker news not long ago on how to do this with my library:
The client is meant to be used as part of a Ruby infrastructure. In that sense its more a library than a regular client but as you can see from the article you can script a client pretty easily with it.
Another alternative would be to look in the official LE client, I believe they have a manual mode.
I think that would also fit your need
For anything cpanel / godaddy related... I'm not the person that can help you.