BBP conversion

So I have a spindle from a 73 10” a body set up. I don’t offer it because it uses an oddball wheel bearing.
I’m suggesting the B body spindle because it uses the most common wheel bearing as well as the BBP drum.
They all use the same lower ball joint. And yes you need to use the later style “big upper balljoint”. I don’t recommend the adaptors because they seem to be a one and done solution. No separating the ball joint without replacing the adaptor.