Would like to pull with Omme WW with tandem axle 1600Kg, who has experience with 2.0 Maschiene

Would like to pick up WW from the permanent place. Our 2.0 Omega looks a bit heavy… But in the flat country…. Well, look forward to your opinion and whether it makes sense to install an org. trailer coupling from Opel, as this is already registered in the FB with 1700kg at 10% incline. Lg Tosh