250k for a single mold if they don't have drawings of the final size of the last is reasonable - high but reasonable. Building molds is still a lot of trial and error that CAD cannot help with. Plus time for one off on an assemble line is not cheap since it is often half an hour of nobody in the factory working except the two people switching out the mold. once you have a mold you can make thousands and so the cost ammortizes out if you need that many.

my company has looked into spending billions for a chip fad of obsolete processes just to get some no longer in prodction parts. So far not worth it.