Inside Grow Help

Alright I basically lurk around this site a lot, i mainly grow outdoors during the summer. I successfully grown 3 female plants about 6-7 ft tall so i know about all my nutes, light hours etc.. but one thing is I want to start growing indoors.. Now the only problem is.. I live in an apartment, 3rd floor. Its all college kids and i doubt they would ever rat me out on growing, the building is 4stories tall.. but gotta be safe than sorry so im gonna be using carbon scrubber. anyways.. im looking to grow at least 1-2 oz on a constant routine, would a 175wat or a 250 suit me well? I just want to grow 2 plants only nothing more, or possibly only 1 plant if i can yeild 1-2 oz from it.. but by than its gonna be huge..

Also, what im growing in is a greenhouse type thing bcuz i had it from a while back.. its

61" tall, 35" wide, and 18.5" from the back to the front.

personal opinion: not smart, get a old pc tower and make a stealth grow box you'll get your 1oz for sure and use cfl's so you save money. mainly no growing should be done in an apartment i'm assuming it's illegal in your country, bug dudes come in and spray, landlords watch your energy bills etc. they can just walk in whenever they want to remember that. and that shit will be stinking. stleath grow box. look it up.

Screen 1 plant under a 250W HPS for bud and MH for veg.I,ve had good success with 250's!just make sure u put your plant in a big enough pot.If you do it well(knowing that you are gona need abit more veg time to do this) u could get 4 - 5 oz of bud.