Yes, sadly so are Sadsid right.
But you can try the "Vehicle Simulator", and if you search for an "add on" to that game you will find tugs which have much better standards than what the tug in this game(SSE) has. I do not know if you can run Vehicle Simulator on multi-screens, but if not you can contact the creator of that game and I think he will help you.
You can also ask Vstep if you like, they are creating professional simulators, so they can for sure help you if they like but I suppose they will charge you a big amount(and museums usually not have a lot of money). And personally I do not trust Vstep, and that is how they have treated this game so I can not recomend you to ask Vstep.
Go for the first alternativ and I am sure that you and the creator of that game can find a great solution.