Steven,
Technology is getting scary....and coming down in price.
https://www.nextengine.com/indexSecure.htm

I do not think these are capable of scanning such a large object, but you get the idea. At those prices you would not need to sell many scanned items top recoup cost. It gets a guy thinking for sure. The scanner then is converted to G-code for machining purposes.

http://www.bertramandco.com/
Booking African hunts, firearms import services

Here for the meltdowns