I would say Upgrade your Reflector to an air cooled sealed reflector like the Easy Cool 6 or 8 Also i have some of those Grow Bright 600w Bulbs and i like them. Also get some Ventilation and Odor control not sure if you need odor control but the Ventilation is a must in most tents I would choose none and get the 6in fan kit. Ive never heard of Pro Mix so not sure if thats the soil you want to go with but its really up to you