Establishing RCV on commercial property is research, not lookup. A 2016 press with a specific tonnage and bed size has no list price today; what it has is a market of dealers and rebuilders who sell equivalents, and the defensible figure is what one of them would charge. The same is true of a discontinued walk-in cooler or a server configuration nobody builds any more.
RCV is also the figure salvage is measured against: property with a high replacement cost and a live secondary market is where recovery is worth pursuing. Compare actual cash value.