Home Despot is your place, u can get a little cheap ass grow light and a drip watering system for less than $30, keep that bitch live for years if u have power and water. seeds from herms are like rolling dice.
the flanges and shit u probably dont need (i just duct tape the ducting straight to my hood), just the glass, it will REALLY help with temps allowing u to get the light closer.
i recommend u get fabric bag pots. They will really stay cooler and allow airflow through the soil. The plant can handle these temps but the roots struggle when they r baked as they can be in black pots.
i used to grow in huge plywood boxes of sunshine#4 which is a lot like promix. no drainage, just a 6x8 plywood box lined with plastic sheeting. Works great, just dont fuck up cuz if u overfeed or lockout u are doing it to all your plants.