All the thing I've done to get my custom build, and all the things you need to reproduce my work is on my GitHub fork of OpenWrt. For example, the script is here.
Those are a dedication to the public domain so feel free to do what you want without even noticing my existence. 
You can, of course, use them in my custom build that I can guarantee that they work as expected, out of the box and as I documented them. But I will not send those files to upstream because they don't belong there, and I'm not searching to pass their quality control, but mine and the critical eye of people that know more than me.
P.D.: I will send the calibration board files to upstream and to infradead as soon as we feel confident of the results. Please: do not send the files yourself. Let's be really sure first.