Slant Six to Big block Engine swap in a 74 dart sport.

Alright thanks man for the input this is the first real project i'm gonna try to do myself drivetrain wise and paint and body.I was thinking about the be cool radiotor myself how much did it set ya back.And I was talking to a guy at work I thought he said if I went with a RB motor I would have to use a oil pan off a 60's B motor.You get the headers from schumacher as well?