If I changed the printhead too, would this make it a completely refurbished unit? (pump-cap assy, dampers, printhead)?
because even after replacing all these parts, the cost in the end would be much, much less than a new P9000, not to mention the long-term cost of owning a P9000 since as far as I know, 3rd party carts can't reset, so are unusable. I'm in Canada, to give you an idea, the cost of acquiring a new P9000 is $6400CAD plus $2390CAD for a new set of ink. Total acquisition cost of a P9000: $8790CAD.
I'd rather refurb a lightly used 9900 if it's a viable option, and it would run me less than a third of that. Now that I have a 4900 too and they share the same ink, it would immensely simplify my workflow and allow me to purchase bigger bottles too, so more savings.
Right now my plan is to change the pump-cap assy and dampers, do a piezoflush and see if the printhead can be restored, if not change that and try to get another 3 years out of it. Unicorn? Realistic?