When taking it apart.... if the crank has no scoring visible when you take the rod caps and crank bearings caps off... immediately stick Platigage on the bearings and re tighten the caps... then take off and read the size on the package ... this will be an easier measureing situation than trying to use a micrometer ...
The stuck turbo is worrisome... but can fail without the oil supply being the cause... and noises can be other stuff down low... so a careful inspection as you take it apart is very important to economical use of what is good and what needs help....good luck...