Depends mostly upon your ground and plow size. A 4X14 pulls much easier than a 4X16 or 18.
In some of my ground, I would need a full set of front weights to pull a 4X14 plow with my M9960.
You will also need AG tires and rear ballast.
SDT
I am with SDT. What type of soil? Flat or hilly? How is your tractor set up? Are your tires loaded? Do you have wheel weights? Do you have a FEL? Have you tried to plow with the tractor as it is? How much land are you going to plow? Is this a one time thing or are you going to farm with it?
I mean the easy answer is to buy the rack to hold the weights and then fill it up with weights. But if you have a FEL you could fill it with some scrap iron and chain it in and not spend the money for the weights.
Have you tried plowing as is ? Was there a lot of front wheel slippage? Did the rear tire slip?
And a video would be nice to see the county side.