I have 5.75 acres, all of which I maintain. What is the best and fastest way to dethatch and aerate a yard this size? I've found an aerator like this to pull behind my mower. Would this work well, or is there better? And for the dethatcher, I've found this one. Both have 48" widths, I believe. Do they come larger? I have a 61" deck on my mower FWIW. Thanks for your help!