I can't imagine that those old tools would be used anyway. If the 45 is to be produced again, it seems to me that the most sensible sourcing approach would result in it being made in China using local Chinese components. It might be done just by adopting one of the existing Chinese copies of the 45, and putting Rover 45 or Scott Bonnar 45 labelling on it. Alternatively, as a premium product they might produce drawings in Australia and have the machine made in China to its original standards. SB45 enthusiasts would no doubt prefer the latter approach since it would mean that new genuine spares would remain available. I don't think it would be a technically difficult project either way, the main issue would be how many they could expect to sell.
