Lifeboat Livery is/was always changing, Bunzle, and you have to decide absolutely, whether you are going to build it to how you want it to look, (after all it is your model......not others) or whether you are going to build it to please the "rivet counters" of this world.
Personally I build my models to please ME, not others, and even though they (rivet counters ) moan and groan...........I don't care or give a flying fig...................I build to please myself.............and if YOU feel that at one stage in her life she could have had both emblems (corporate logos) AND name on the aft cabin at the same time, then you put them on, and tell the rivet counters........."if you can build better, go away and show me..............." they soon get fed up of moaning and don't bother coming back..........I know from experience.
Either ask them to put up and prove their prejudices and theories..........they usually can't!!!..........or shut up
neil.