Sounds like the right one. I believe the installation does checks anyway so it wouldn't/shouldn't flash if you had the wrong sdk or architecture zip.
On my Lollipop ROMs I stick with v87.
Maybe give the UNITY installer package a try. Couldn't hurt. Just make sure to uninstall your current Xposed first to start fresh.
Xposed Framework [UNITY]
ZTE Axon 7 A2017U, Project New World, Multiboot, Tapatalk 4.9.5