ye, do a sog method with the perpetual harvest and you will get a harvest every 30 days. get 'the cannabis grow bible' by greg green, you can buy it on the internet. There you will get a basic knowledge of growing. Do some practice grows before you try anything like 18 oz per month, but a 1000 watt HPS and a 600 watt MH would be a good purchase as you want to grow a lot. After reading the book look up sog on the internet, with a grow of this scale you would have to do a lot of research. If you have some knowledge of growing I still recomend you read this book, I only read it recently and I still learned a lot.