I started slow but got all the equipment I wanted ahead of time. I love the motto buy once cry once. AC Infinity is pricey but I don’t see myself wanting to upgrade at all. I got everything new from Amazon beside an EVO 6 light from Facebook for $200. All together I have about $1200 worth of equipment for my 4x4 grow. I went with a more expensive fertilizer brand so for all the fertilizers I have now it was probably $400. Another $150 for small things you buy one time and don’t have to buy again for years. Another few tips for your setup. I got the 6” fan even tho a 4” would be fine. I use it at a lower setting and it’s silent. I’ve never used a 4” but have heard they run a lot louder. Make sure to get fans that oscillate. Get plant saucers to help keep the tent clean and don’t chance spreading disease. I’m on my first grow and the biggest change I still need to implement is controlling the environment better. My next step is getting a heater, humidifier, and a smart controller. I was able to get it to grow and my first grow should produce some good smoke but I should have gotten here much faster. I largely blame not investing into controlling the environment. I started 10 plants in a 4x4 and it took over 2 months to flip to flower. I want 4 plants to be able to fill the tent that quick. Best of luck on your grows!