It will not be as 'stealth' as you might think. Perhaps it will block out most light, but it will not block noise of the fan(s)..... it doesn't have any air filtration, and where is the air exhausted that gets blown out?

If you are an experienced grower, you might get 2 oz of finished product if you are very lucky. I doubt if that is even possible without the use of HPS light (high pressure sodium). I have only run an autoflower once, and will never use them again. Better control with regular plants, since you determine when to flower, not the other way around. As far as nutrients, I would say use one of the most popular kind from General Hydroponics.... the three part is very adaptable. You will also need meters to read how strong your solution is, and what the PH values are, so they can change as the plants mature.

Good Luck!