Description:
This mod makes the SCS dry bulk trailers ownable and working with the cargo market. Tested on version 1.35 and 1.36 . Some important notes about this mod:

This is my first mod ever (excluding skins cause I don't count those as mods), so it will not be perfect.
There will be a few errors that show up in the game log about a body locator not being able to be found, but this does not cause any issues with mod itself. It should not cause any crashing or anything like that.
I have tested this on both a clean profile and a heavily modded profile and had no issues ever. On the modded profile I set it to both top priority and lowest priority and it worked both times. But if you still have issues, try to up the priority and see if that fixes it.
If you discover any crashes, please comment below and tell me what happened so that I can work on fixing it for the next version.
I hope that this is not the final version. I plan to give a try to make both triple and turnpike double chain types available, but they do not currently exist in game, so I have no idea how hard that would be. I also plan to make a shiny chrome variant of the trailer instead of the current weathered chrome that the trailer comes with. I have other plans as well, but all of this stuff is only planned, not guaranteed. So no promises that this isn't the final version.
Finally, I want to give a HUGE thank you to Half Fast Gaming for all of the help he gave me with this project. He sent me links to which of his tutorials I should watch, and if he didn't have a tutorial that answered my question, he would work me through the situation himself. So again, thank you!
 
Credits:
SCS