Rebuilt Engine bearing wear

Those bearings look fine.
Plasti Gauge is ok, but most folks just check one spot on a main or journal so they don’t see out of round. And there is a huge resolution and repeatability issue with plasti gauge,, how old are the strips, the temperature they are used at, just for starters.
If you really want to know main and journal clearances, get a dial bore gauge and a set of micrometers.
You can get a good set for a home garage use for around 100.00 for each, lots of you tube videos on how to use.
And, a hot tank is good for cleaning up the surfaces you can see so you don’t rub debris into the build process. But you still need to scrub all block and head and crank oil lines with hot water and detergent and more hot water for a flush after the hot tank to get the internal lines clean.