That sounds like a great modification for the FS25 game! Having all attacher types available on a chassis truck opens up a lot of possibilities for players who enjoy using various trailers and implements in the game. The inclusion of support for both semi/gooseneck trailers and bumper pull trailers/implements is a nice touch, providing flexibility in gameplay.
The option for different types of beds, such as a Boxbed or Haynbed, accommodating bumper pull trailers/implements is a practical feature that enhances realism and customization options. Additionally, the ability to choose different wheel and tire options adds to the overall customization aspect of the truck.
Introducing new features like Flotation tires (CareWheels) and different motor options further diversifies the gameplay experience, allowing players to tailor the truck to their preferences and needs within the game. Overall, it seems like a well-thought-out and comprehensive modification that could add a lot of value to the FS25 gaming community.