B Deck Suites in the 1928-1929 Refit

In 1928-1929, most of B Deck (1911 lettering) was drastically changed with new first class suites, but i haven't been able to find any deck plans showing these plans, does anyone have a B Deck (or later A Deck) plan showing these changes?, also how did the parlour suites change with this refit (was the private promenade added?)
 
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