Who would control a privately completed Tosa?

If a private party completed Tosa before the Second World War, would the Allies acquire her and how would she be used?

Japanese control is considered most likely; Britain would take an accessible ship, while a Tosa retained in Japan would join its effective battleship strength.

A private purchaser completing Tosa is treated as conceivable, but foreign ownership is considered unlikely because Japan would want the ship to remain under Japanese control. A suggested treaty loophole involves Japanese lords who retained rights to own warships. That idea is said to have been abandoned because British imperial and dominion fleets were counted together under the treaty arrangement. If a modernized Tosa were somewhere Britain could obtain her, British acquisition is expected. If she remained in Japanese territory, Japan would instead have a capable battleship described as roughly 45,000 tons, capable of 26.5 knots unless re-engined, and armed with ten 16.1-inch guns.