Disassembly questions and need some general knowledge.

crank sounds good but have the machinist check it anyways.
the rod caps,
are you saying that during the former rebuild they did not install the right caps in the right places?
same thing have the machinist check,wouldnt hurt to have it all line bored either.

the bearings when i looked them up,seem?? to be standard size going off your part number.
i would compare them Carefully to make sure All the numbers shown match and they arent different sizes.
your machinist will be able to tell you by measuring the crank anyways.
see link and numbers on bearings in picture.
https://www.oreillyauto.com/detail/...rd-connecting-rod-bearing-pair/cb606g/5773966

things to consider for a slant six.
diff years used a diff distributor gear between distrib and cam
make sure you have the matching components.
doublecheck twice before installing distributor using Any kind of bronze or tougher gear.
Keep this in Mind when ordering a Cam !!
Ask them specifically which one to use.