DanB - Yes, I remember you discussing this before & mentioning these factors. Appreciate your insight & expertise.
But do you feel that my main concern might be something to take into consideration? That since these pumps appear to shatter mainly because of the poor housing design where the cone in the housing comes loose & hits against the impeller, and w/a new metal pump you will still be using the old housing & cone, as that's the only way metal pumps come (just the guts), wouldn't it be a real disaster if the old cone came loose & hit a metal impeller - more so than hitting plastic?
With a new Motorcraft, you would be getting a new housing, & *hopefully* a cone that won't come loose, or at least in better shape than your old one. Which brings to mind this question - anyone have a (supposedly improved) replacement Motorcraft pump that has had the cone come loose?? I'm assuming that they only changed the type of impeller plastic used & that the housing design is still the same, or is the cone more secure in the redesigned Motorcraft?