Hmm....I would not build a baritone neck. Children of Bodom play many of their songs in that tuning and they play common 25, 5" scale guitars and have an outstanding guitar sound live and epsecially on their latest CD. I myself use that tuning with 25, 5" guitars too and it works perfectly with a little thicker strings. A baritone scale surely has it's advantages in better bass response, but I preffer the standard scale, because it does not slow you down in the lowest frets and still sounds excellent with the right strings and amp settings....