setup advice

Hello Everyone, This is gonna be my first grow overall and using Mephisto Double Grape Autos. I am a little confused around the nutes. Here is my planned setup. Gonna be growing around 65-80F the whole time so temps aren't scary (especially because the lights will give heat and should stay <70...

First time grower here. Below is what I think I'll be buying. Any changes or suggestions would be cool. Planning on growing autos at first, in hempy buckets hydro style. Would like 3 - 4 plants in 3gal pots. Also hoping to grow non-cannabis later too. Like veggies and stuff. Live in the desert...