> Question #1: Is it possible (adviseable) to stretch out a Guillemot to
> about 18 feet by changing form spacings? I'm looking for a trade-off
> between a Guillemot Expedition and a regular Guillemot, and am considering
> either that idea or an Outer Island.

Yes.

> Question #2: Given that the chine has a fairly small radius, Nick's book
> talks about using half-strips in the chine area. Could, instead, the forms
> be 'squared up', i.e. given hard corners, and use 2 beveled strips to
> create a harder chine?

Yes. There is a transition from hard in back to soft chine front that you would have to deal with.