Where do I put my growbox? Noob question - Pic inside

Hi guys, luckily I asked my mom if I could grow cannabis in our (her.. ) house and she said yes (med purposes). We have an empty room which is unused. I want to put a grow box inside this room like secretjardin, silverbox etc (something like 120x120x200 cm). I choose a stealthy "small" growbox because we usually have guests and friends and I can't really hide an entire room (it's also my first grow, a simple grow box will be easier to manage). I also plan to grow just my own weed, so I won't need tons of it. The problem is: where do I put my growbox? I made a simple pic of the room:



The extractor fan side of the grow box should touch the window? (to quickly remove hot air from the entire room)
What about the intake fan (which usually is located in the opposite side of the extractor). Should it stay near the window too, to maximize air quality?
The problem is that, sometimes, the door will be absolutely locked. Instead I can open the window even 24 hours a day if needed.
I will be using a single 600w mh/hps, 1 inline 280m3/h extractor, 1 intake fan and 1 clip-on fan above plants.

It may look like a stupid question but I can't reallty decide where to position my box to maximize results! Thank you guys

I'm not sure where you are, but between you being worried about visitors finding out and saying you'll keep the door absolutely locked, it sounds like you may be in an illegal state. If that's the case, I'd be concerned about leaving that window open 24/7 and also about the visibility from the window of what you're doing. If that's a ground level room, and not on the second story, someone can just happen by and see/smell/hear your grow.