I want to enlarge my current koi pond from 15x10x2.5 to around 20x11x4 . That's a lot of digging even with a existing hole the local pond installers greenscape, Bruce co and even the shity pond paradise "which I have issues with" want a fortune . Green scape ponds start around 9k!! All I want is the hole dug and liner installed. But when you say that nope " not interested" they want to put in there over priced filters, pumps, lights which I don't want . I have had great success with my simple bog filter. Anyways anyone know a good excavator ????