Postwar funding and Vanguard-style bows for Anson and Howe

Why were Anson and Howe not rebuilt with Vanguard-style bows after the Second World War?

The ships were not too worn out; the difficulty was securing money from a government using carriers to justify other naval economies.

Anson and Howe are identified as the relevant ships when considering postwar Vanguard-style bows for the King George V class. They were not judged too worn out in this answer. The obstacle was justifying the expense to a government using carriers as a reason to avoid other naval expenditure. The exchange does not establish that a formal reconstruction scheme was adopted and then cancelled.