my first grow.

whats everyone. i just started my first indoor harvest. ive grown out door for awhile but im ready to make my own good buds.i bought a grow box from my cosin. its about 7 feets tall and 5 feet long and about 2 and a half wide. i just started my bigbud seedlings. i have a 400 watt light for flowers, floresant for veg he said. you have to remeber i have about no idea about indoor.i have a grip of nutrients from some friends, i got farm farm stage 1 stage 2 and stage 3 flowering boosters? and a bunch of sea weed based prodects all my friends say work pretty good. i dont have good soil or pt testers and stuff. i have about another $150 i can spend right now on some things to help me.anyone have some help for me?
THINK GREEN. AND GROW YER MIND...!!!

1. ph testing kit
2. moisture wand
3. good thermometer (no cheapies)
4. oscillating fan(s)
5. plywood for growroom
6. 2 x 4's for growroom
7. white paint for growroom
etc.

and good soil