I think u could do something huge with the setup..u might wanna think bout scrog or heavity lst so u dont end up with tall plants.each 600 has a footprint of 3×3.id def go with vertical grow,how u get there isnt important but u will b pushing on walls without it.i do something similar,i hav 2k hps n a 6×7 area.trust me it can get outta hand.good luck