Reading further from the description at the auction, apparently the people who commissioned the rifle up for sale, actually built 2 of them and are selling one of the pair. Since they were only completed in late 2019, it is obvious that the seller is selling one to help defray the cost of building the rifles. Probably explains the rather high (IMO) starting bid and again IMO opinion unrealistic estimate.
Well the auction is 5 days off so we will see what if anything it brings. I know I have no desire to only a "replica"