I own a Fastrack 20/52. I would like to remove my blades with an electric impact wrench. The auto ramps that I have will not raise the mower high enough to fit the impact wrench under the deck. I don't own a floor jack. What would be he simplest and safest way to lift the mower high enough to perform blade changes? Anyone have experience with the "Jungle Jim's- Jungle Jack" or Ballard's- Super Jack"?