What is your goal? If you are planning one running the grow without manipulation you will run out of light. LST, Super Cropping, tieing and other manipulations will allow you keep the plants low growing to utilize the amount of light you have to give them. I would run a SCROG in that size grow area. As you say you are going to veg longer so that should give you the time to do the training needed. And as bob said, you will need to hang that scrubber to give yourself more room, you will need it.