On night spinners, I have never rated them because they aren't deployment area artillery. Where there are better options you don't see a lot of them. Here because so many of your core needs are easily met and deployment strike is easily generated they seem more useful. Perhaps see how your list changes affect things. An expensive core and a slight change to attractive units changes the priorities and affects activation counts.
As a general rule though if your new units are more attractive than the old ones their might be something wrong...
And what was the rational for no Avatar? Too foot bound?
Something I would consider is
Core
600 points 3 SHT formation - spirit stones (25), Firestorm (50)
475 points 6 Falcons, Farseer Falcon, 7 guardians - spirit stones (25), Firestorm (50), Autarch (50)
So big armour formations as the core, then a re-jigged support to get activations back up, but play with air a bit to stop the list being too easy to build.
Support - up to 3 per core (upgrades as normal unless noted)
Falcons (5 falcons, can switch 1 for a firestorm) - spirit stones (25), Firestorm (50), Farseer Falcon (50), Autarch (50)
Engine of Vaul Troupe
Fire Prism Troupe
Night Spinner Troupe
War Walker Troupe
Hornet (what are these I wonder)
Lynx
Windrider Troupe
Aspect Warrior Troupe
Guardian Warhost
Nightwing squadron
Phoenix Bombers
Mixing in aircraft makes picking support slots trickier.
Allies
0-1 Eldar Spacecraft
Vampire
Revenants (Two Revenant Titans)
Phantom Titan
No single Revenants as a tank focused list.
For the Farseer Falcon
http://store.wargamingtrader.com/system ... -10-24.jpgNo weapons, so could be something like
50 points, add Farseer falcon to a formation
AV, mv35cm, sv5+, cc6+ ff4+
Twin Shuriken Catapults (15cm) Small Arms
Pyskic somthing (15cm) Small Arms +1MW
Skimmer, Holofields, Commander, Invulnerable Save, Farsight. Farseer units can be used to summon the Avatar.
Transport (May carry one of the following: Farseer, Guardian, Howling Banshee, Striking Scorpion, Fire Dragon, Dire Avenger, Dark Reaper & Swooping Hawk units).