63 slant 6 904 transmission seal and o ring question

I am in the process of going through my 63 dart engine and transmission while I have them out replacing seals and any gaskets and any worn parts I find while they are out and have a question about the transmission.

I am trying to figure out what seals and o-rings I should replace in the transmission. I know the input and output shaft seals and pan gasket. I have a new input shaft seal and pan gasket, but am trying to figure out what size o-rings or seals for the shifter or cables or Speedo housing. I found the real seal through the slant six forum as apparently rock auto lists the incorrect output shaft seal. To confirm I found national 474260 or skf 11515. That sound correct?

Any help on this would be greatly appreciated.