Okay, its not finished yet but the project in which I am writing a customized Gradle build for integrating with Eclipse ADT is here:
Not only is it organized as far as project layout for Eclipse ADT before ADT 23.x comes out with full Gradle support, the build.gradle itself is organized so that whatever I have to change is close to the top with appropriate block areas for full global variables and for block areas for more local variables for the build.
Also, it is set up to play nice with Eclipse, yes I stil have my IDEA block to add so its no mess fuss to import the projects using IDEA/AS without any manual messing with settings.
Why the GoogleURL shortener link? Nice way to track clicks of my code repos without any effort at all.