-3 Towers, +2 Pests. No more than 8 upped quanta sources are necessary when you have 6 Pests and running a Monodark Dragonrush. 10 if unupped.
Personally, I would then do -1 Dagger, -1 Dusk, +2 Siphons. If I find the extra Siphons aren't needed, I would simply remove them for a smaller deck. Smaller = more consistent.
But it works either way.