Will the Buckets seats and console from a early 63 Ford Galaxie  fit into the 57 Fairlane? I know the mid year seats will and look like there made there.

The floor pans will need stands put on them and the legs on the seats probably will need to be shortened.  I have seen on done that way and it is very cool!

I found this car and it has the 390 with 4 barrel carb in it to

Sounds like you have a great donor there!