63 Galaxie is a good year (64 was prettier imho)... old Fords look neat in the weeds.
Start with getting under the car and seeing where the body pan and frame is worst. Frame and pan repair eat most of the cash in a total restoration. Keep in mind that this is a car that i'm pretty sure that you're not just going to run out and find this that and the other thing at a junkyard. These cars are a rare breed in this day and age (I know; my dad is restoring a 64 Galaxie 500 convertible).
step one:
get the car in the air and do a total AND honest assessement. What is weak? What needs the most attention? How much money do you want to commit to this project?
Step two:
take a good hard look at the body... can you get panels? is there enough left to the understructure to withstand a resto?
Step three:
assess the interior. If the interior is too far gone, your resto may become a street rod (modern seats, console, etc)
Step four:
the engine is the easiest part. It's a full-size Ford! What DOESN'T fit in one of the large bastards?
ditto with the transmission/rear end.
step five:
now that you have your notes and the cars major needs... start calling around, searching the internet, join the Full-Size Ford boards... I have found that internet boards are priceless (yes, once you get by the idiots and trolls) for finding out most everything you need to know. Make contacts with Ford dealers... you'd be surprised what an older, established Ford dealer can get. ;)
Step six:
this is all you, mang. this is where you decide to start the job, or sell it for parts.