CFL Indoor Growing Questions.

First timer here. I have done research for about 4 years on and off, talking to different growers and researching many sites and videos. I have some touch up questions to ask before I flower my plant. It is about 6 inches nice and green doing well i just need better ventilation and need to put my plastic up.

My setup right now is

-5 gallon bucket with holes in bottom.
-a brand of promix soil (what my buddy uses)
-2x 100W (23W) CFL 1600 lums each
-i have good nutes, no co2.
-Close in white reflector made of a cement tube painted 11 inches tall around the bucket with a hole in it for my fan to blow in it.

Questions.

-Can i just have 4 main colas if i chose to prune it that way?
-What colas should i use for the four colas for flowering ((What tiers or higher))
-Will only 1 plant stink up an apartment?

only one I can help with is no one plant will not stink ur apt up...I got one flowering, cola probably 1 half inch long in the closet and so far only smell when first open the closet door

1 plant probably will be manageable, however there are stinkers that show up from time to time
i grow 1 plant myself, haven't had anything yet that was too stinky, though i've been close

my one plant stinks the house up. and.......more light. (4) 23w cfl's would be more like it.