Bloody hell.
From bitter experience, I know that cracking in the hard outer shell of the luthite body acts as a weakness and makes the lower horn very fragile. And the upper horn too, I have no doubt.
Avoid like the plague.
I wouldn't want to drill the neck like that, myself; four holes across the top of the neck, positioned just right for a crack to propagate, and with the four original strings putting tension on the area. Trouble waiting to happen.
Tres Chicas, 'Bloom, Red and the Ordinary Girl'.
Pleasant enough if you like that sort of thing, but one of them is Tonya Lamm ex Hazeldine, so I was hoping for something more.