Raising a Condenser
The easiest way to do what you are proposing is to get four cinder blocks and a couple of 2"x4"'s. Set two cinder blocks on one side of condensing unit, place the 2x4 on top of the blocks at an angle. Use the 2x4 as a cantalever on the block and lift on the bottom of the condensing unit. Have someone place the other two blocks under the ends of the 2x4 that you used to lift. This will hold it while you make your pad modification. However do not attempt this if there is not enough flex in the tubing that is connected to it. Trust me, this would be extremly costly if you damage it. It is always a good idea to get a professional hands on opinion before attempting this. Most good company's will look at it for free in hopes of you using them when you need a repair.
Character is doing the right thing even when no one is looking. Intelligence is understanding and practicing the meaning of character.