In hopes of modernizing the C-19 with short tender (because i wanted the reverse light) i purchased a dome (large C-19) model 831x-OBEO7. After looking at the parts diagrams i realize why it does not fit where hoped. Is there hope that the other dome parts as well as those for the front dome will be available separately....or will we have to purchase the entire boiler to end up with a more modern appearance. Thanks for your thoughts.