would prob. go taller. maybe 1.5 meters i think that is around 5 feet you can scrog but you don't bend the plants during flower. you can but you should be able to find your budsites prior to flower and then let them grow UP. the taller the cab. the higher the heat will rise.
. . . .i'm doing a 250hps in a 1.5x2x5 (feet) cab. i have a passive intake/active exhaust system. it suits me fine. depending on the strain you might want to go a little taller.