You should not need to create a Ortho Mapping Workspace custom sensor type. If you have the a mosaic dataset created that includes the RPCs etc as part of the function chain then the Ortho Mapping Workspace can use this.You can try this out with other satellite sensor imagery first to see how it works
You might want to check if it is possible to share a sample scene, but were all the pixels are replaced with a constant value. This would show the structure of the metadata etc without revealing anything about the actual imagery.