I personally use a faster Necron army that maximizes Fast Attack before all else, so if anybody who uses a phalanx army replies, their advice will probably be better than mine. That being said, here we go...
Well, first off I'm not a fan of either pulse or gaze. Pulse is too limited in it's use, gaze doesn't help when your going to lose CC anyways.
Secondly, I consider 2 monoliths at 1500 points overkill at best, typically risky, and suicidal at worst. Yes, they can keep the Warriors coming back, but not dying is very different from winning.
At such low points, and with so few warriors, you should only need one res orb. Cut both pulse and gaze, one lord, and a monolith and you will have enough points to add 20 Warriors as well as a Phase Shifter (extra survivability to the Lord) and either a warscythe, phylactry, or any other fairly cheap wargear to the remaining lord. Played properly, amongst 40 Warriors, a Lord should have little trouble surviving, and proper tactics should see your monolith surviving at least a few turns, which should be more than enough.