Ist es ein großer Aufwand an eine Kreiselegge eine Hitch anzubauen?

I guess you’re moving on to a drill combination with a hydraulic excavation of the drill.

As a rule, these are only the lower lifting struts with bearings and a hydraulic upper link with connections to the tractor that you have to get.

For the upper arm (new) one would have to estimate 400€ + hoses up to the front 50€ + lower lifting struts from the manufacturer of the circular arm 200€

For all this you can best use the original manufacturer of the Kreiselegge.

And otherwise you’ll be advised by the land machine locker. It can also offer you individual solutions or if such accessories should not be available for your device. Well, I guess it’s more.

However, one should also check whether this cultivated excavation groove is the right for the tractor, because the seeding machine with full seed box is far away from the axis and exert great forces on all parts.