We all know if your going to do the job right you need the right tools. And doing work like this means you need production out of your tools. If you want this done in one day and done right get the right tools.
May I suggest a Cat D10 with a ripper to break up the concrete and a track hoe with a claw to load it.
Don't forget, SAFETY FIRST- wear eye protection, gloves and a hard hat.
