PRR P85b Coach

[jpwc50]

Centralia Car Shops have put out PRR P85 coaches that are fully assembled with interiors. Has anyone attempted to get inside one of these to add interior lights?? Everything appears to be glued together with no access to the interior. I e-mailed the company & they said that the cars don't come apart. I thought maybe there might be an industrious modeler out there who might have some ideas??