Sorry for responding so late, but yes it cost me 4k. Watching the guys that did this, it was back breaking work. It can be done solo, but I wouldn't recommend it. But if you were already planning on doing the digging on your own, then the cutting wouldn't be that much more work for you. Just remember to cut bottom, sides and finally top. Any other way and your blade will bind. The toll rental should be around $150 + whatever damage you do to the diamond blade.