718K Grasshopper, 400 hours, 18hp Kohler Air Cooled (toast). Looking to re-power. I would prefer Honda or Kawi, not too fond of Kohler. Found an exact replacement 18hp Kohler for $1800 and I thought that was a bit too high. I am in search of a place (online) to get a new engine. Also, I would like a bit more power. 20hp or 22 hp would be great as this mower has a 61" Deck. Have you done this before? Would you do it again? What brand engine do you prefer and why? Any and all advice is appreciated!! Thanks!!