I'm surprised Bill, as Bayko was very big in the post war/1950s period, but there's no way they would have been suitable for a train layout.
I remember unsuccessfully making small houses for my meagre train set and gluing "brick" paper on them - the effect wasn't too bad, which was good enough for us, as we couldn't afford the "proper" Triang 00 gauge buildings.
And I quote :-
Over its lifespan, both Plimpton and Meccano Bayko was exported across the world, and, besides being a toy, it attracted a modest adult following that still exists today. A healthy trade in original Bayko sets and parts also exists today, with some enthusiasts even casting their own Bayko pieces.