I am wanting to make a guardian farm just like SMP8 PWU's. So if you want to help please comment down below and make sure you know the design. Once you want to help I will tell you the coords and we will start emptying out water for the falling guardians. We need lots of people to work on this so it can be done quickly. Once it's done it will be public. You may be saying there is already a lot of farms just like this and my answer is yes but this one is gonna be a bit different.
I built one with the same design as PWU. With only two people it took us 3 days, not full days either, to get it done.