Now that I have the hydro bore machine bought from amazing machinery I will tell you what I think. It is a well built system and I have drilled a new water line with it at my rental house. I didn't hit many roots but did hit rocks it took some time but they moved out of the way to get past them. Now I think you could make one of these pretty easy, you need 50 ft of 3/4 pipe threaded at both ends some 3/4" couplers. 1/4" 75 ft jetter hose. A 3/4 bell reduced down to 1/8th or 1/4 or 3/8 or 1/2" depending on the hole size you want to do. Aqua mole now has a listing on their site with nozzles for hydro boring with prices and spray patterns. Now get a couple of gun racks to hold the pipe, add this to your pressure washer and go!