Bobcat 7' grader on cat 277c

Hi guys, I own a cat 277c and came across a BC 84" grader attachment. The serial number shows it is a 2008 model. Any opinions on whether or not this attachment is to small for my machine. I have some road grader cutting edges I was thinking I would put on it to make it 6" wider on each side. Thanks

Bobcat 7' grader on cat 277c