Grow Box Build ???????

Well I made a post a few weeks ago about buying a pre made box and I have come to conclusion that I am probably better off building my own. That way I can get it exactly how I want it. So I am basically getting a list together as to what I will need. My box will probably be about 48" high, 24" wide, and 20" deep and will house 4 plants max, but 2 plants will be ideal for me. Will also be doing soil. Got some questions though and need your input...


1. Wood
- Im thinking about using 3/4" MDF, is this ok?
2. Reflective mylar
3. Surge protector
4. LED lamp
- I will be getting one good for veg and flowering, probably 200w+
5. Exhaust fan
- How many CFM's should I get. Will nost likely install an inline exhaust fan that will be inside the box, Phresh carbon filter on one end, and the ducting on the other side of the fan to pull filtered air out the box
6. Intake fan
- Should I use a passive intake which is basically only a hole in the box, or should I purchase a 120mm computer case fan? If I do passive, then their should be 2 holes that are the same size as the exhaust ( 2 for 1 deal ) right?
7. Fan
- What about having a small fan to direct air onto the plants, should I get one?
8. Temperature/ humidity thermometer
9. Timer
10. Lock, I got to lock my shit up yo!
11. Moisture meter

Am I missing anything besides the soil and nutes?


I've got my seeds but not sure what I should grow first.
- barneys farm violator kush feminized, dutch passion white widow feminized, world of seeds afghan kush ryder autoflowering feminized, sagarmatha seeds northern lights #9 feminized, delicious seeds northern light blue feminized

 

am i missing anything else? sounds like im pretty much golden with my list. Just gotta start collecting my materials