If it were the case that the existence of other simultaneous AGI projects was considered likely as the FAI project came to fruition, then this consideration would become important.

If? IDSIA, Ben Goertzel's OpenCog, Jeff Hawkin's Numenta, Henry Markram's Blue Brain emulation project, and the SIAI are already working toward AGI and none of them are using your "selective second option". The 2011 AGI conference reviewed some fifty papers on the topic. Projects already exist. As the field grows and computing becomes cheaper, projects will increase.

You write that CEV "is the best (only?) solution that anyone has provided", so perhaps this is news. If you read the sequences, you might know that Bill Hibbard advocated using human smiles and reinforcement learning to teach friendliness. Tim Freeman has his own answer. Stuart Armstrong came up with a proposal called "Chaining God". There are regular threads on Lesswrong debating points of CEV and trying to think of alternative strategies. Lukeprog has written on the state of the field of machine ethics. Ben Goertzel has a series of writings on the subject, Thoughts on AI Morality might be a good place to start.

"Civilisation" is not intended to have any a priori ethnic connotations.

I'm glad to hear you didn't intend that. I do still believe "civilization" generally has strong cultural connotations (which wikipedia and a few dictionaries corroborate) and offered the suggestion to improve your clarity, not to accuse you of racism.