A little advice please

You are VERY foolish if you seriously plan to butcher the car like that. A FE equipped Galaxie in a XL (luxury) model is a fairly rare car as not alot were produced or more importantly remain out there. Do yourself & others a favor-either finish off the car "all Ford" or sell it to someone that can appreciate it & do it justice. A cummins powered Ford of that size will be nose-heavy, complicated, ill-handling & a "bastrad" that noo one will admire, respect or show interest in