ok all these are fine but learning to use them is a different story.and this is where you learn. i still recomend you stick with soil for the first one to learn more about nutes,life cycles,health issues,environment, and each strain will be different. with soil there is more room for error,and more time to fix problems making it a good learning oppertunity for a noob...
those cool cabs by sunlight sheds are a nice set up and new they come with lots of supplies,make your own out of a metal cabinet or wood is probably cheaper and you will learn more and why by building yourself. some 2x2 wood for frame and particle board is basically the same but way cheeper, a friend of mine even used thick dense styrophome like that blue stuff which is used as insulation in houses.
daystar reflector looks a little small. try something that is almost the size of box,better light distribution.
mylar is better. it reflects the light better, black/white is cheeper and is morefor light leakage, flat white paint will give the same reflection as plastic.
as far as a humidifier i would recomend a combo dehumidifier and humidifier combo. you can have it do both so you have a perfect environment with atmospheric control panels if you need it.
co2: i would stay away from till you learn more. it can be dangerous to humans; to much is not healthy. for the cost of them and the yield difference i would stay away.
water chiller cooler: water holds up to 20% more o2 at 72 degrees than at 68 degrees, a reverse osmosis is probably the best thing to do with water. it uses a uv light to purify water. or just a tub with a fish tank filter to clean impurities is all i use, and thier cheep.
hepa filters imo are a waste of money, constantly changing filter. dont need any filter on intake only exhaust...hepas will purify the air none the less but will not remove the smell of a fatty flower...they are used for larger particles in the air such as cigarette smoke and pollen...maybe use the hepa after the carbon filter to remove the slight carbon smell from the carbon filter..?
fan size depends on the room size.multiply the lenght x width and x hight and that is your cubic footage.and keep in mind that a filter would cause back pressure and you would smell it outside room. The idea is to have a higher cfm than your qubic footage to creat negative pressure so air is always entering the room and not leaking. some good fans for quiet are called huricane fans...they are quite expensive for what they are but very quiet and efficient at moving lots of air...used with a spped control you can adjust the cfm to what room size you choose.
the areoponic stuff like i said before i realy dont recomend it. stay with soil on the first one and once you learn more you can always change later, dirt is so much more cheaper. with water you need to add nutes every time you feed them with soil it`s only every week or so...
I suggest you go easy and learn from the soil...being new you need to know things before hopping to hydroponic or areo. You will experience different plant problems, airflow, nutrients requirments, light spectrums and quite a bit more...starting just soil for now will give you a better idea of where you will take your grow, in soil organics has major differences than hydroponic or aeroponic...find the way thats easiest for you but know the basics first...
with areo and hydro you only have a couple of hours to save your plant if something goes wrong, with soil at least you have more time to figure issues out or to ask questions and solve problems...