I'd put that one away and use a different motor. Save that one for the next owner to work on. Better yet just buy a used motor off CL to drive around and put that one in the corner. Probably have less money in it than rebuilding this one.
The more I think about it, I agree. Especially if all cylinders need sleeved. I may be lucky to get it bored to .065. Man that is getting thin. I would need to have it sonic checked.