1) get a digi ballast, so you can switch to MH (metal halide) lamps for vegging
2) 6 plants SOG should do the trick. The 4x4x6.5 sounds like a nice tent.
thats like 1.2 m x 1.2 x 2meters right? or something like that
just make sure that it covers at least a 1x1m2 area.
3 sizes of pots (small, medium and large) 3, 6, 11liters should do it.
you want the cannopy to be even so it gets the maximum amount of light
go get your gear first and we re here to back u up
theres no bud like your homegrown