We are looking at converting a 600 to hydro ground wondering if anyone ever done it with combine hydro. Or best most economical way to do this... An yes I have called H&S an they did not seem the most helpful said roughly 9k for kit but we're hesitant to give any breakdowns or pics of one so Evan if you have a 600 or a 6060 with it done pics will help out an any info off hydros to help match something that will work.