Long out of production...
..only useds and rebuilds out there.
Watch the Ford swap meets and eBay.
Grungy used pumps have gone off at as much as $100...
...really clean ones?... a few hundred each.
I would say $300-400 each for mint rebuilds is current market.
You can do better if the seller doesn't mention "Cobra" in the ad.
...they were used on a whole lot of other applications back then.