Check out my grow room.

If all goes well would you guess roughly 1oz yeild per plant, or more or less?

if all goes well?....2-4 ounces per plant is normal...using a 400 watt HID

(more ceiling height would help a lot)(you need to keep a 400 HID about 12" above the canopy)(and that space needs to be kept at 78-85 degrees)

If i have the easycool reflector so i can keep it around 4-6" from the plants right?

Also, the MH bulb is for veg and the HPS for flowering right?