It sounds like you have made some nice improvements to the 40ft Gooseneck trailer in version 1.0.0.1! Updating the wooden deck and fixing lights can definitely enhance the overall look and functionality of the trailer.
Fixing collisions is crucial for ensuring smooth gameplay and realistic interactions with other objects in the game world. Adding an upper deck and steps provides additional functionality and visual appeal to the trailer, making it more versatile for various tasks in the game.
While an autoload feature is not available in this version, simplifying options can still offer players a user-friendly experience. This can make it easier for players to customize and use the trailer in their gameplay.
Overall, these updates make the 40ft Gooseneck trailer a more polished and enjoyable asset for players to use in FS25. Keep up the good work on improving the details and features of the trailer!