For the 1000w I suggest a 4'x4' area with a light mover and for the 430w I suggest a 2'x3' with a light mover. Heat is the biggest obstacle and it will need to be addressed. Put a board(painted black facing out) across the window with duct holes. Place speaker cloth across the whole to block light and prevent pest. Your not only concernede with light leaking out, but light leaking in, which can disrupt the flower cycle.