There was a Spanish Company from Vitoria that made very good simulators.

I don't think they sold very well but I think they are still in business.

Can't remember their name but I can look it up if you cannot trace them.

I think the cost of building the simulator is just to much and I doubt if it was really the same as the real thing.

Maybe for the large machines you are talking about the cost involved in getting it "Real " maybe be justified.

The cost ratio between a simulator and a ship (and/or a Plane) and a forklift I think makes simulators for forklifts difficult.