Front suspension questions - big vs small bolt pattern

Are the LOWER controll arms the same from small bolt to big bolt disc brakes?
Are the LOWER ball joints the same from small bolt to big bolt disc brakes?
I have 73 Dart big bolt pattern and 69 Dart small bolt pattern parts to work with. Trying to put together a useable set of BBP parts for my 69 Dart.

Also, can the lower control arm bushing pivot pins be purchased new? This is the pin/socket the torsion bar installs into in the lower controll arm. I have 4 of them and 3 appear to be bent!

Thanks for any help you can provide.

George