Komodo dragon weight sounds appropriate.
How about Improved Initiative, Track, Weapon Focus (bite)?
4 ranks in Listen and Spot, 3 in Survival?
Speaks no languages, but understands Common, Celestial and Infernal?
Edit: To justify my skills selection, I think that the B-G has no need for stealth whatsoever. It can hunt small mammals by killing everything in a 70 foot cone and picking up the carcasses. I could see an argument for them using stealth to evade larger predators capable of resisting the breath weapon, however.