Nah i dont plan getting cheap fans maybe 2 good inline vortex fans.ya if u had a window or something and it wasnt to boxed in u could get away w/ some cheap fans..but nah a trill system has an air cooled hood and a exhaust fan hooked to it..and at least a passive intake..
Damn bro thats a BUNCH of light for that small tent. Go with the 400 you'll have to keep the 600 to far away and might run out of room.
Peace