Vivosun 600 watt HPS/MH with sealed hood $159. Best bang for your buck as far as lighting is concerned. You can easily pull a pound in a 4 x 4 tent with that light.
Honestly dont buy a kit theres hundreds of people on here that can help you put a decent kit together off amazon and you will save money .
Since you already had a list with everything I just used yours and modified it. Only difference is I bumped up the fan and switched the light. It's also the setup I use minus the oscillating fan. I don't have an oscillating fan. The passive air intake creates plenty of airflow.
4x4 vivosun tent
$160 amazon $105 Amazon
Ac infinity exhaust fan 4 inch $ 119.00 amazon HYDROFARM ACTIVE Air 6" fan + speed controller $99
Carbon filter 4 inch amazon Vivosun 6" Carbon filter $50
Spider farmer quantum boards 120w x 2 lights
$150 each . Amazon
Vivosun 600 watt HPS/MH Air Cooled Reflector $159 Includes dimmable ballast, hood, MH and HPS bulbs, timer, and 2 ratcheting rope hangers.
Ducting for exhaust $25
Oscillating fan $25
Temp sensor $15
Get a gorilla grow tent.
They do all different sizes so it's totally your choice on how big you want it to be?
While those Gorilla tents are probably the best constructed tent on the market they are pretty damn expensive when you can get the same size tent for half the price. Most of us don't need to do pull ups in our tent. I paid $100 for the tent I have and years later it's just like it was the day I bought it. All I needed was an enclosed 4 x 4 space in my garage. The Gorilla is more than twice what I paid.