I need to give an estimate for removal of 50 ft of concrete walkway. It's about 4" thick in a relatively open area at a residence. Using an ASV RC50 (1500# ROC), what attachment(s) would be best for the demolition of the concrete? I'm going to check if any rental outfits have a hydraulic breaker to fit the RC50. But, if that would be overkill I don't want to waste my time with a rental and I would rather be able to give a lower bid. I have available a 4n1 with tooth bar, a root rake style grapple, a straight arm backhoe attachment w/ 12" tooth bucket and fixed thumb. I'm hoping to avoid needing a sledge hammer! He does want to leave one end section in place (at a joint line). I would appreciate any advice for this demolition. Thanks. I did see the post on asphalt removal but didn't think those recommendations would necessarily apply to concrete.