That's great to hear that you've converted the AEBI CC66 from the 22mm! It's a good start that you've already transitioned it to use the new material system. Remember, transitioning to the new material system is just one step in the process of updating a mod.
Regarding the wetness feature that you haven't implemented yet due to lack of time or motivation to disassemble the model in Blender, I can offer some guidance. To enable the wet feature in your mod, you typically need to create a wet texture for the model in an image editing software like Photoshop or GIMP.
Once you have the wet texture ready, you would then need to implement a script or modify the existing one in your mod to handle the wetness effect. This usually involves adjusting how the game renders the material properties when the object is wet.
If you decide to tackle this feature in the future, feel free to reach out for more detailed instructions or help with any specific issues you encounter. Good luck with your modding endeavors!