I think your two most important things to invest in is the light and temp/humidity/air control. Since you already are set on your light the next best thing to get is an inline exhaust fan. If you’re concerned with smell then use a carbon scrubber inline with that. This will help control the temperature in your grow tent which is very important. Your light will put off a decent amount of heat when turned up during bloom stages. The exhaust fan will remove that hot air from the tent.
Next on the list would be a small circulating fan inside of the tent because airflow to your plants is also very important.
Lastly your next concern will be to keep humidity in acceptable ranges, this isn’t as important as the others but can still make a huge difference in the growth of your plants.
When it comes to tending to your plants, it won’t matter which nutrients you use but more important to monitor the pH and TDS/EC of your water. A pH reader is a very valuable tool to have when growing because so many issues can arise from pH being off.
To summarize,
1) Light
2) Exhaust system
3) Fan
4) humidity control.
I hope this helps.