Indeed, Mohegan13, the problem could be in the case that SCS doesn't have the license for those cabins
And about the livestock transport, the %damage on the cargo could be changed in that case for a % of nausea that could represent how gentle the driver is handling the truck so the animals arrive in good conditions(not just a damage that will drop when hitting the trailer against something). It could be a detail that make harder to drive those kind of trailers (as far as I know, they already are IRL). A way to include a new more demanding mechanic into the game.
And also the same mechanic could be used in the future for the coach/bus DLC.