Might try Chris Watson (supersonic) or Jeremy Flax (can't remember his screen name right now). They are supposed to be developing one for mod. level trucks.
8-cyl inline p-pump or billet pump is attached via a new front case on the block. Think Kenny's Machine & Pulling Parts makes the case?? Pump attaches to the case in the valley like the CP3 normally does and is driven off the cam gear I believe. No idea on pump model numbers. Columbus diesel and Scheid both have V8 pumps (pump is V-shaped, not inline) also IIRC.
No idea on the injectors other than I'm thinking they are using John Deere injectors?? Can't remember for sure. It's posted on here somewhere I *think*. No idea on any other particulars there.
That's all I got. Good luck and PLEASE post whatever you might find out.