Egon
Epic Contributor
You could also consider a cultivator as we used to call them followed by a diamond harrow.
I would forget about the new KK 3-point disc, and look for an old pull-type instead. This type does a better job on every pass with less weight, and requires less power, meaning you can use a wider one (probably an 8-footer with that tractor which would be limited to about a 6.5 footer in a 3-point).
I have looked for 8 months now for a used disc harrow in my area via paper, ebay and craigslist to no avail.