To the OP:
it seems you are frustrated with replacing parts. I’m not sure of your length of being in this hobby or maybe you don’t understand that most of these cars / parts are over 50 years old and have been handled by many people in their day. Even new parts today suck. Let along 60-70’s technology.
As for the crank issue- it’s hard to tell from a single picture. I would not run that crank until I had it checked out by a professional in person. $50 or so to let a machine shop check it is a good insurance policy then listening to people give an opinion from a single picture. Chances are it’s okay.
Keep us posted.
Syleng1
