I can't draw stacked bulbs, but the idea is definitely to stack the 1Ks, not hang side-by-side.
I am going to flip two or three of them tomorrow.
yes, that is what i'm talking about. sorry i wasn't more clear.
with the 2 1k's stacked in the center and flipping the 2 600 watt ballasts to four bulbs on the outside or above.