Thanks for the info.
Though Burkes built with 10% growth margin many appear to have exceeded it, or was more top weight which think more likely, they have had to add ballast, lead or pig iron, to maintain the ships stability margins.
If the Wiki figure is correct (haven't seen a BAE a specific figure quoted for T26 light displacement) that would make the Hunter 19% larger ship than the T26 with its larger beam and make the T26 full load displacement approx. 8,400t if using the IH benchmark of 22% which not far off the Australians original Hunter PR graphic, figure quoted a FLD of 8,800t, now approx. 10,000t.
If the T26/Hunter sized ship was to be the basis of the T83 the Hunter costs shows that it could be a very, very expensive ship, A$45 billion for the Hunter class of nine ships, approx. £2.6 billion each. Among many alternative options with undoubtably a much lower in cost is the route being taken by Singapore in association with SAAB and OMT (designers of the IH/T31) for a 10,000t AAW destroyer.