Sorry - itās out of my league Iām afraid. The latest official LineageOS build I can find is Android 6 āmarshmallowā, so there would - I guess - have to be some work getting it to build for android 7 / Nougat.
I have no idea how to go about doing that, and I donāt really have the time (or the motivation to be honest) to find out what would be involved. And Iām quite busy at the moment with devices which may or may not get official builds sometime soon (soon-ish, maybe
)
It would be a great project for someone who owns one of these devices and wants to find a[out abut building ROMs 
Sorry!
EDIT: OK, Iāve found the lineage repo which is CM-14 which I think is nougat. There also appear to be a Muppets repo with the proprietary blobs in.
So all a potential builder would need to do is cobble together a manifest - @Android-Andi might be able to help with that - persuade it to build, and then debug it when it doesnāt work 
Like I said, an interesting project for someone, but not for me. If anyone does pick it up, Iām happy to help test anything that gets built. I own a 7" version, though I havenāt touched it since I installed @Android-Andiās last build.