Yeah get rid of the passenger seat and have a seat belt on the bunk,And a type of adults childs seat you could install or remove , in case you double man etc.You could then have the passenger door near enough all glass .
Obviously one way glass …
One thought i had was movable dash binnacle and sliding pedals so you could use the truck lhd or rhd .Especially now theres no gear stick in most cabs …
Most things are fly by wire now ,The cabs all tilt back and forth .Why not have the seat ,dash and foot peddles movable for ease of use .There’s plenty of room in a cab to do this .No more blind sides and you could switch to lhd in London or heavy cyclist towns …
As long as its not made in china of cheap crap it could work .
Maybe not .just ideas i get 