Thank you so much man it's something I'm willing to invest in...buying online is becoming to expensiveI built my box myself. Just got wood from Build it. That cost me around R600. My 400w MH I paid around R350. My 400w HPS cost also about R300. The ballast with reflector I got for free from my bud. That can cost anything from R600 to thousands. My extractor fan and normal fan cost about R350 to R400. Basically will cost you min R2,500.00 depending on the size of the box. Then you will need to get some Nutrients and do not use tap water.