Honestly, if you have a pattern, anything can be recreated.
The expense for 1 can be cost prohibitive.
The price to build 10 or more comes down a bunch.
Modern cnc technology makes anything after the initial run pretty reasonable.
There are a lot of items available for old equipment that the manufacturer no longer supports.
Use the tech you have to find enough demand to cover initial run costs.
Life can be simpler than we make it.