Well, right now I don't think there's anything that does all that automatically for Blender. However, the "unstable"* version of Chicken you can find in the sourceforge site
, has a handy invocation interface that allows any other script to call on it to export an object. That could allow you to write a script focusing on doing everything but the actual exporting of .egg files and call on Chicken to do the rest.
*Don't worry, it's not unstable in the sense that it's buggy, just that it's not a proper release with updated documentation.
It might seem self-serving but, I think if you're looking for a quick way of achieving that sort of pipeline in Blender this is your best bet.
Besides, if there's some interest in it, I might polish it up a bit and finally make a proper release out of it. I kind of lost interest in working on Chicken since everyone seems pretty much satisfied with what's already there.