Has anyone built a core aerator (unlike the like a JRCO) to take the place of a mower deck on a walkbehind? I was thinking of converting an older hydro WB I have into an aerator. My thought would be to remove the mower deck and build an attachment for some type of aerator in place of the deck. Any thoughts on the best way to accomplish this? Or better yet, does anyone have any pictures of a front aerator setup for a walkbehind. Thanks.