Painting the rest of it...

I suppose once you venture down this track, you are somewhat obligated to see it through.

I've begun painting from the engine room bulkhead back, pulling bundled wires and hoses away as I go, cleaning and scrubbing with a mixture of Simple Green and Sugar Soap.  I'm still priming everything with the magic sauce I found earlier (Zinsser Bulls Eye 1-2-3 primer...which I am convinced you could use to prime a pan of bacon fat).

Painting around the engine is challenging, and will eventually require specialist tools, such as a paint-brush with the handle cut off, an extended roller, and several artist's brushes.

One coat of primer.  Note the vertical face 90 degrees opposite the Racor filter.  This will be the location of my new fuel-polishing/fuel redundancy system.

UPDATE 11/11/13

A HUGE amount of work...just priming it all is almost too much, to think I have to go back twice more with the top coat is unthinkable.  I am using an artist's brush and long handled brushes to reach up under the cockpit coaming and get around all the wiring and hoses...wow....don't do this...live vicariously through me...

Update 20/11/13

First coat of gloss enamel on the starboard aft section...very awkward and tedious work.   Note the original battleship grey colour to the right of the autopilot ram. 

UPDATE 2/12/13

I can't quantify or prove this, but I swear with 50% of the area under the cockpit now painted, particularly the area around the engine, the noise coming from the engine has been dramatically-reduced.  The thickness of the primer and 2 coats of enamel must be functioning somewhat like the noise-reducing paints you see advertised (Silent Running) to quell vibration.  It is really quite obvious.
I am beginning to wonder if actually using the proper noise-reducing paint wouldn't be such a bad idea.  It's not cheap, but neither is the purpose-built sound-insulation.