Waterfarms are good BUT I would build my own cheap and easy. Save the money for a 600 or 1000 HPS to flower..

If you go with what you say clf's start a grow log so we can see the out come of clf's. The guy's who gets good bud off of clf and flouro's are pushing as many lumens as a 1000 watt HPS. Same energy same heat just spead out.