Hey there, I made my own last time I grew hydro. I used 5 gallon buckets with netted pots, a cheap water pump from the garden or fish section, a small drip irrigation kit, and some tubing from the sprinkler section. Used my brain and just went at it. I had 6 large plants and needed a pump that could handle that volume of water. It all depends on how big you go. Just search the web for advice and diagrams.

Good Luck! and Happy Growing