yes timbers that are CITES listed are definetly no-go.
of all the timber out there, probably only 5% is any good for guitars building. a lot of it is just plain wrong, no tone, etc.
If its used for building a house/boat/pier its no good for a guitar. generally speaking of course.
A G3 is a midi system.
makes a guitar sound like a synthesiser, or a banjo, or a piano, or a police siren etc.