IMHO, this is not much different than the N&W 1218. It can be restored. As things are today, neither likely will be restored. At least there is no talk about cutting either of them up for scrap. They exist as preserved relics. There are memories of when they did run in recent history. We have that much. There are many museum pieces that have not been under steam since the 50s.
Am I happy that 4014 was returned to steam? Sure. In my perfect world every surviving steamer would be on the ready track awaiting orders. As for sharing parts, from what I understand the 611J has some 1218 parts on it. Who is complaining about that?