help with room set up.

It has been a few years since I been on here but I had to put up the green thumb for awhile. But now have the space and and ability to start over. Let's start with what I know I want and that is the lights I will use 2 600 watt with air cooled hoods. I would like to cover 18 pots in a 8x4 space. With that said my room is 10x10 and has a walk in closet that is 4 wide and 8 feet deep so if I use that room to flower I am limited to soil and have to remove every pot to get to the last row. So should I use the closet for mothers and clones and build a 8x4 space in the room, use the closet for mothers and clones and use half the room and not enclose it and leave the room open to circulate through the whole room. Or lastly flower in the closet and use a cabinet or open spot on corner for moms and clones. I like th second option because it leaves room to expand, hydro, and better air movement. I am going to start with soil because I am most familiar with it.

The next thing I need help with is ventilation. Should I vent the hood and the room separately or gust vent the room through the hoods with one exhaust fan. The thing is I plan on installing a dryer vent in the exterior of the wall to outside but I only want to put one hole in the house so if I do both individually do I need 2 exhaust ports. And the vent outlet will be one the closet since that will be the back of the house.

Any ideas would be greatly appreciated.

if you have no plans to upgrade then you will get best yield if you flower in the closet due to less lumen loss..

and as for the fans if you use a 6" inline to vent your hoods that will be plenty to cool room as well.. just be sure to have an intake

I was thinking that about the closet and it makes things easier as far as running the ducting for the vent. So when u say it will be plenty to cool the room as well to connect the fan to the two hoods and have the air from the room flow through the hoods outside and to have an inlet to the room right. Thats what I was thinking and did with my last grow room but I did not care for the fan constantly running due to the temps. But I guess if i did it separate the hood fan would still run constantly. Thanks.