Cant go wrong w/timber. U wont save much$ sourcing everything yourself. Customer service is second to none. Very knowledgable - hit Dan up about your 2x4 . EASE OF SETUP good luck bro , light that shit up !
you need to run more cobs at lower watts to get better results like Capt M. save up and run them at lower power you will be surprised. I run two lights, one at 50w and the other from 20-50w for variation and growth. I also use cobs below 25w with cheap chinese drivers and they work great too. experiment and have fun