Need some advice on lighting

I have a grow room that is 4' x 8' x 8' tall. Thinking 4? plants, what kind of lighting would you use? I have two 300w mars II.. how much do you feel I need? Thank you.

2 1000watt HPS for a 4x8 is ideal. or about 5 more LED's.

I was thinking 1000 watt and one 400 or 600 would do it. two 1000 would be the best... just wanted you guys to reassure me.

I grow 8 good-size plants in a 4x8 room under two 600 watt HPS's. I modestly pull a lb every other month.