I have a JD X475 (equivalent to an X700) and want to make a small garden. I am thinking of getting a PTO tiller. What is the most economical tiller with good quality? Currently I don't have a rear PTO nor hitch. I have done a search and found Sitrex, King Kutter, JD etc. I have been watching CL but they seldom come up for sale. I did find one currently listed, a JD647 but he wants just a couple hundred less than he paid which is $2000. I'd like to pay closer to $1000.