I get that. But what are your needs? does your air setup need a charcoal filter? what kind of grow are you wanting to do soil or hydro? what supplies will you need for that? Those are the 2 big things i think to start with. Then the left over is going to be your lights
Basically im soil but i go outside. but your breakdown is going to be
Pots - so what size are you looking to do to fit in your space?
Soil - what medium are you wanting to use and what will you need for that medium throughout the grow, nutrients etc. treatments and nutrients can get expensive quick the 'more, better, good' you want to go.
Inline fan (with or without charcoal filter for smell?) you can go filtered air in and out. so its choice of 1 or 2. Based off your wants/needs. Will you want to go 4"/6"/8" id say for that size you want smaller. Like a 4" but i personally feel 6" fans are better quality and burn out less when used with charcoal filters. Going off the replacements sold at my grow shop gossip.
Lights do you want to go straight to the top quantum? I mean you could make this the pinnacle of your budget and sacrifice else where which tends to be the best school of thought.
temp/humidity gauge This is simple. same as the rest
ppm meter
PH meter
regular fan
odds and ends, hangers, zip ties, misc tools. youd be surprised how much small stuff you either think you need or end up actually needing at some point. but most of it is really simple stuff one can find around their home.
Then from there with various methods you could need even more gadgets, gizmos, doodads with the odds and ends.
fans 1 set is about 130ish double if you want 2
lights sky can be the limit
Nutrients again you can easily blow 0 not that i think its necessary to buy gallons of every product. but one can definitely find great value in various products on the market. same when you add insecticide and fungicide's.
figure for that size lights about 0 0 for air is a good metric. That size tent id just get something like this for air
https://www.amazon.com/iPower-Inline-Variable-Controller-Ventilation/dp/B07D8QLSBY/ i say the 6" model cause i feel like these burn out less when using a scrubber based on grow shop gossip. those lights i sent its about $260 shipped for 2 so im not sure what you want to go with. So i figure thats good guess for a range.