Will be interesting to see whatever Drawing's are available, however in a
Plan View, I suspect both shafts are aligned inboard
As Weapons person, I rarely ventured to boiler/turbine spaces ....however at 0200, 100 km's off the East Australian Coast ...in the CPO's Mess eating the last nights dinner I sat & asked what was the increasing rotational resonant whine? ............the answer was it was #1 turbine propeller shaft [increasing speed] which was in the tunnel space directly under the Mess area
So why this?......it reconfirms my memory that #1 engine was in the Port shaft axis and is a s per the variance in the A Frame profile shown below
Following sketch
my best 3-D visual of the shafts alignment Derek