That sounds like an interesting modification for a combine harvester to work as a maize chopper in FS25! By coupling all forage harvester cutters, you've expanded its functionality and made it more versatile. The price of 400,000 in-game currency seems fair for such an advanced piece of equipment. A max forward speed of 85 is impressive, allowing for faster and more efficient field work.
With a capacity of 2,000,000 and a fill type category of forage harvester, this modified combine harvester can handle large quantities of maize with ease. The high empty speed of 50,000 ensures that the harvesting process is quick and uninterrupted, saving valuable time during busy seasons. Overall, this modification would be a valuable addition to any farm in FS25, enhancing productivity and streamlining the maize harvesting process.