Ah, I fellow traveller of the path - I hope you brought provisions 'cause I sure didn't!
You'd think this stuff'd be easy to find in RKMs and the like but what I know I've found out mostly by accident and by using odd little developer type utilities like Zap (v2.47 - nice little program) and another I picked up recently - Exemine. It gives hunk information and offsets to the data of address sensitve instructions.
Message me if you'd like me to email them to you otherwise they can be found on Aminet.