How would you use this space?

I am using a closet that is 2x6x8 As you can see I have a ton of vertical space I have some pretty good equipment for this area.

Light rail on 6 ft rail
600watt HPS air cooled
intake and exhaust fan + circular fan

What would be the best technique to employ in this space with this equipment? SOG? scrog? LST? Monster plants 6 ft tall? I want to maximize my space as best as possible I was able to get 4 plants in there my first grow which was pretty good. I grew them to about 4ft tall. Pretty happy with the results but only used half the rooms vertical space.

Should I just do the same thing but grow them big? Lemme know how you pros would optimize this area thanks!

Vertical scrog would be the best bet in those dimensions

I wouldnt be able to use my air cooled light tho right? i would have to get a barebulb/socket deal?...Could I hang my air cooled light sidewayz?

I am 99% sure you can hang your cooltubes vertically without any danger. I have done it with mine and had no issues. Where did you pick up your lighting system? If you have the name of the brand I think you can find out how safe it is to hang it vert if you're like me and get very nervous about fires lol. I do not see it being an issue but you will need to work out a way to take out/reduce the bends in your vent tubing.