I did make one like this. Tubes + 30G rubbermaid bin + 1100GPH Iwaki pump.
At first I got some troubles because I was thinking the using the pressure of the close system. However, the iwaki pump is not as strong as I expected. Thus, I only use the pump as the returning water pump. And use the gravity to fill water.
The total cost I spent is about $100 included the iwaki pump. I will make the Pressure system again for my next pond.
It's working well so far for my 210G tank. If you want to have the bigger system for your pond. You have to have very very powerful pump as 6000GPH +