Refresh or Rebuild: One Cooked 4.0

Just my personal opinion but I think the risk of the dingle ball leaving grit or something in the engine and causing other failures is higher than just running the short-block as-is. Like I said, that's just my $.02. Either way, I wouldn't spend on a full rebuild at the stage OP is currently at.
That is a call one has to make, I have done the dingle berry hone, then scrubbed the bores with hot soapy water and a brissel brush. Worked for me.