While I'm searching, let me know if you prefer to download from MEGA, DropBox, or Google Drive.
I did some searching. The dev's oadam11 domain is gone. Then I went to his android file host profile. All of the various ROM directories are present but no files within. It's as if all ROMs have been removed. I'm sure glad I hold on to things (apps too given how things are disappearing from the Play Store).
Hopefully a D855 user has held on to the ROM.
ZTE Axon 7 A2017U, AospExtended v4.6 ROM, LlamaSweet 0.5 Kernel, microG (NoGapps), Multiboot, XDA Legacy
Oh man, yes. Completely forgot about that site. It has downloads for v5.8 of the ROM. Way better than nothing. Thanks a bunch.