A kit model is a toy where the enjoyment comes from the act of putting together the pieces until you have a completed product. Kit models can be airplanes, cars, ships, even fictional things such as space ships seen in Star wars and Star Trek, or the droid mechs from shows such as Gundam Wing. They can seem frustrating to children, so if you're a patient parent it may be a good bonding experience to sit with a child and work on a kit model of something you both enjoy together.

A toy is a physical model.

You can find a toy kit to make a wooden train online at this website: http://www.ehow.com/how_5790477_make-wooden-toy-trains.html It shows that the task is moderately hard to do.

Hobby shops have a much better selection of models that department stores do and might be willing to special order it for you if it is not in stock.

As per the company, it uses the KR-RK repair kit (the same kit used by the model G). Not all of the parts in the kit will be used for the Model E. The trigger pin in the kit does not fit the model E so the old trigger pin has to be used.