That $10K price is the regular price, I got it for less than $10K. As for stumps and trees, I am not a good one to ask yet as I am still learning the fine art of dozer operating. Saturday I was pushing 6-8 inch diameter trees out left and right and occasionly I would get after one with a good root system that cause me to spin the tracks. I got one tree over that was around the 10-12 inch dia that was on a slope. The best thing so far is that evrything it does, it does it a lot faster than the 30hp tractor with loader that I had. I never expected to take out anything real big when I bought it and I am sure as with anything, in a month or so I will wish I had something twice as big. For now I am really happy with it and never imagined myself having a BULLDOZER!