If this site had the extremely useful ability to pin images such as MWS I could show you the exact positions, unfortunately this ability is sadly missing.
Check Vladi Karen`s Canberra and also the MWS writeup which will give you the 20mm positions, his followup explanation will show the quad locations.
Whilst no definitive proof exists for the deck colour it is almost certain they would have been painted a dark deck grey, her upper masts at that time were highly likely sky blue.
There also now exists some speculation on her colour at Savo, Chicago Blue did not officially exist at that time.
It was believed that C.B. derived from 5-N but may actually have been modelled from 5-S, another story.