Building UP.41 would trade Italian fleet balance for heavier battleships

Was UP.41 intended for the Soviet Union, and what would it take for Italy to build the design itself?

It was an Italian Soviet-oriented design, but Italy would have to build it instead of Littorios or sacrifice other fleet construction, with wider consequences for battleship gun competition.

The UP.41 discussed here is the Italian design prepared for Soviet interest and related to the Littorio family. Italy possessed enough industrial capacity to build such ships only by substituting them for Littorios or squeezing the rest of the fleet. That would conflict with the Regia Marina's preference for a balanced force of capital ships, cruisers, and destroyers. If Italy nevertheless built 16-inch battleships, British persistence with 14-inch King George V guns would also become harder to justify.