After some thought, and a few minutes with a file I've carefully reshaped the "brow" over the windows.

I think it now looks a lot more like a Warship, although the front is now looking a bit sorry for itself with various splodges of copydex and filler. This is the current state of play after a couple of hours work tonight.

New handrails (the ones under the window now have the central pillar), replacement lamp irons (Shawplan) and beefed up headboard clips (plastic strip). I also removed Bachmann/Mainline's attempt at the ventilator above the right hand light. It's the wrong shape. My chosen prototype seems to have lost it anyway and just has a dirty blanking plate in it's place