I don’t really completely understand your setup but from what I see you will have some problems.
Also, from the pictures, it doesn’t look like the 24x12x30" space you mentioned in your first posts. What is the actual dimensions you have? Or maybe the pictures are tricking me
from what I see I can identify several issues:
1- your water container seems to be not light proof and that’s a complete no no. Algae problems which will cause PH issues and a bad smelling reservoir.
2- Wanting short plants while wanting to get some appreciable yield, one plant is not enough. You might want to for SOG (sea of green). I would suggest about 4 plants for this grow space but not one.
3- during flowering, this grow space shouldn’t have any light leaks or the plants won’t flower. I don’t know how you dealt with that, especially that you should have air inlets and fan outlets for exhaust.
4- I don’t know how you dealt with the exhaust issue, like where is the fan and is there a hole at the top of this grow space?
5- For a stealth growth, you will have problems with the odor without a carbon filter. So much for stealth
I can suggest a working design that can solve all these issues in this tight space (well maybe except for the odor but I can try to come up with something). The thing is that you will have to change some aspects of your design. So tell me if you’re interested and I will post my suggestion in here as it takes some time to draw in CAD.