Although everything is in Japanese, the pictures tell you most of what you need to know. If you want to buy anything either go shopping in Japan or just make a note of the code and look on eBay or similar.
E.g. the first bullet train is S01, so search for "Tomy S01" on eBay should turn one up. Helpfully the eBay listings usually give a basic English translation too.
Japanese rolling stock
E.g. the first bullet train is S01, so search for "Tomy S01" on eBay should turn one up. Helpfully the eBay listings usually give a basic English translation too.
Track
Other stuff
