Wow, that is a cool set and the sticker sheet is still intact. Bet those characters are hard to find and they have a new to me bottom. Most I what I recall characters like this, they have a closed in bottom and would sit in a round concave spot on an accessory. These have hollowed out bottoms and sit over a round convex nub.
This is very beautiful. I like the merry-go-round and the ferris wheel; I suppose they are spinning when the train stops by... Would love to see that set in action.
Note that this ハイウェイぜんじどうふみきりセット is not Plaroad. It is Plastic Highway. There are major differences between naming.
This page was mainly contributed by Mr. Iketani.
There are already images, so do check now.
Super, we are not Biglobe. We are separate from Biglobe. プラレール番長, the owner of the dead old Plarail Museum is not in our team.