Firm where I started doing international work still had some “inbetween” trailers, so half a curtainsider, half a tilt sort of thing if that makes sense, I’ll see if I can find some pic’s of them. They were bomb proof, made by Draco Sneek, but there were only two of the lot left where the roof slided forwards without problems, the other ones… took a bit more encouraging to put it mildly.