That looks similar to a barrelponics system. That was my first, proof-of-concept prototype. It cost me $700 and 50 hours of work, and had a growing area of ~9 s

That looks similar to a barrelponics system. That was my first, proof-of-concept prototype. It cost me $700 and 50 hours of work, and had a growing area of ~9 square feet. I'm sure you could get the system cheaper if you found the parts for sale, or already have them. You could also build it faster if you're really handy, have the experience, and don't make any mistakes.