From the SE website Re VP-44:
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Rebuilt 5. 9L Cummins 24 Valve Electronic Fuel Injection Pump "UPGRADE" (exchange)
This is our premium rebuilt upgrade 5. 9L Cummins 24 valve electronic fuel injection pump. Not only does this pump recieve our normal high quaility parts and workmanship, it also includes the newest improvements from Robert Bosch Corporation. This pump includes several improved parts; an improved pump body housing, an improved PSG (which is Bosch's term for the pump mounted computer brain), and an improved diaphragm. If you're complaint with the fuel injection pump is hard starting or no starting, then this is the pump for you!. The improvements are meant to eliminate the hard start or no start conditions.
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$1100 - not bad compared to current pricing from other sources...