I had been waiting a long time but today finally got the windows and doors added to the building. I had painted these in Midland Maroon some time ago and assembled the sash windows. These have now all been put into place around the building. I used Deluxe materials "glue and glaze" for the assembly as it bonds plastic and wood drying clear in the process. It is also less messy than impact adhesive.
Next stage will be the guttering and interior details; my wooden floor is to be painted then the details added to the interior walls.
These is still much to do afterwards including the canopy but at least the building is looking like it does now even the though the track bed disappeared long ago.