Scored Main Cap Bearing - Ouch
Rod bearing looks pretty bad for 400-500 street miles... Looks like an abrasive went through there. What brand of bearing is that?
So the other rod bearings don't look like that at all?
Gotta wonder if a bunch of trash was left in the vertical oil passage between the #5 main and #5 cam bearing?
BTW.... we're all have a 'duh' moment LOL. The pan is off... examine that to see what is in the bottom!
The oil pressure numbers sound pretty good.