man , I would think long and hard about it , I did mine and I`m glad I did , I wont have any doubts about it for another how many years , which is a comfort . However it is more work than you can imagine , lots of little details along the way . I used romex and boat wire for twelve volts. Bx cable might be nice but hard to hold up when insulating and before you get the panels back up . I also wish I made more circuits , I just copied what was there originally, which would surprise you when you see how they ran it , which is why its hard to locate those pesky shorts without the wiring exposed . I also wish I had made a diagram for other 63 f.c owners , I have it in my head for now more or less , but should have put it on paper . I suppose you wouldnt need grommets with bx , I used the old holes and grommets if they were ok .
Get plenty of 1/8 drill bits , some clecos ,thousands of rivets and be prepared to restore the whole interior , you wont be able to help yourself once its out !
Just when you think youve drilled the last rivet ...
chris aka flyincloud