A further point if you're just going to swap the pump - I really will be shocked if running cold 10psi hasnt equated to 0psi even semi-warm which means I'd be equally shocked if you havent got metal/swarf floating around all over the place. Whack a new pump on and you'll be throwing all that swarf through a brand new part. Even if the pump was the initial failure, the swarf is only going to cause premature failure of the new part.

If you were seeing 10psi hot I'd be less damning about it all and you'd probably get away with a loss less, but most CVH owners have been there, done that, learned the hard way