FWIW:
There is a new thread in the "collecting" sub-forum about a proposed "Indiana State Rifle" that raised a question in my mind about the legalities/ethics/ etc of copying historic arms.
"The bill specifies that any duplication, reproduction or sale of a reproduction {of the rifle: DWS} must be authorized by the foundation."
In the past when I ran a museum I got entangled in various copy-right, artistic-right issues to a slight extent; just enough to know its a mine-field designed by and for lawyer$.
A discussion with some of our experienced builders might be interesting and educational