How about this instead
Necron Overlord (Warscythe, Mind Shackle Scarabs, Sempiternal Weave, Resurrection Orb) – 160
Royal Court (2 Harbingers of Destruction, Solar Pulse, 2 Harbingers of the Storm, Harbinger of Despair, Nightmare Shroud, Veil of Darkness) – 210
Necron Warriors (5 Necron Warriors, Night Scythe) – 165
Necron Warriors (5 Necron Warriors, Night Scythe) – 165
Necron Warriors (5 Necron Warriors, Ghost Ark) – 180
Necron Warriors (5 Necron Warriors, Ghost Ark) – 180
Necron Immortals (10 Necron Immortals with Gauss Blasters) – 170
Annihilation Barge (Tesla Cannon)– 90
Annihilation Barge (Tesla Cannon)– 90
Annihilation Barge (Tesla Cannon)– 90
= 1500
Lord and veiltek are with the immortals, stormteks with night scythe warriors, destroteks inside the ghost arks .... the veiltek gives the immortals decent mobility and with a lord / res orb they have decent durability (the nightmare shroud on the veiltek is there because I had spare points - my main matchups are orkz / tau / eldar so it could be useful - res orb is on the lord because of extra points also), scythe warriors are anti-armor with the stormteks and the scythes are good
AA, the arks are there for AV13 saturation and to make target prioity between themselves and the annihilation barges difficult, tri barges are there for cheap firepower.