Well, I'm thinking regular spacing on the neck as in any regular 4 string, but on a Gecko Body style, one single Music Man styled humbucker, but,
Tune the sucka down to B like a 5 string minus the G.
I'm basically thinking about a 8 string, but in a Gecko Body style rather than a traditional. I like the Eagle, but that's about the only other body style I like (other than a TFS) than the Gecko's.