68 coronet/superbee parts

Buddy of mine scored a 68 Superbee 383 4 spd b3 blue white stripes,needs a complete drivetrain preferably date coded 383 and 4 spd stuff,and a bench seat for a 68 b body..any help locating said parts would be appreciated,also date correct HP manifolds and a crossmember...and a deck lid[trunk] has to be for a 68 off a coronet would work,69 wont work....thanks...