I thought I would dress up the lowly Lionel 200 series PW Alco. I made an interior for them. Held in place by the light base, window and shell. This is being submitted to the OGR 3D sight. Full details will be there. It will include the .step file if you want to modify.
This is for the frame with the vertically mounted light. If horizontal light it wont work. You would have to change the light or modify. Also if there is a horn It wont work.