https://www.janes.com/article/87175/...te-acquisition
Apparently OMT also offered them to the Australians - sounds like its management and design that are on offer rather actual hulls which will be built locally
The IH class is built from standard blocks - a lot of them similar to the Absalom Class destroyers. There's a long and detailed article in the 2014 edition of World Naval Review
Actually building from pre-assembled blocks IS efficient - that's the way most large vessels are build these days - and things like oil rigs and offshore processing centres - you can have a lot of people working and not getting in each others way as you get on a traditional slip or dockyard - same way as we build aeroplanes or cars...............