Veg is usually 60days,but your in the drivers seat flip when ever they look big enough. Keeping in mind they stretch after flipping. Can you cut a 4” hole in the side of that armoire? Mount one of these to the top of the box and blow it out the side. No smell!
The back up plan. But mount in clever spots outside the house. ona mister
As far as yieldI gotta 100-150 grams? No way not your first time and not in that thing sorry to say. But that shouldn’t even be a concern for you just focus on healthy plants. Are you adjusting for Ph?