Different routes, same result. With my method you end up with three pretty standard packages (the diffs to the mentioned packages are just a few lines) and one small self-made configuration package -- if I find the time to do some cleaning up, I could release them on garage (or somewhere) and maintaining should not be difficult...

By the way, extra thanks for your package N770-Freak: Getting some of the stuff in the maintainer scripts correct would have taken me ages without a "reference implementation".