Rebuild Journey Continues

[951 or bust.]

Hey all just starting out my 951 rebuild tracked down a set of cases finally. have a crack in the lower sleeve looking for some insight
should the sleeves be replaced, is there a repair option? what would you guys recommend for replacements? The current bore size is 88.90

Here's a few pictures of what I'm working with




The last photo is a view of the crack from outside of the bore.

 

[racerxxx]

That's trash, or have them re sleeved then bored and honed to stock bore again.