Something else to consider. I ordered my 'C' new at a local dealer. When it came in, they invited me in for orientation. One of the things they showed me was the marker lights in the cabover. They removed the chrome covers to show me that there were no cracks in the underlying fiberglass. The covers are installed at the factory with high speed screwdrivers. If they over tighten, it can crack the fiberglass, creating a potential water leak that you'd never look there for. Mine was fine.
Retired and visiting as much of this beautiful country as I can.