Injection pump problems (parts)

[gearjammer]

Hey guys. I'm stumped on where to get injection pump internal parts.. The problem it started with was some old gas mixed with diesel was ran through it... That's something you should never do. I dropped the tank cleaned it, fresh diesel, No start... so I cracked injector line cranked it and crank it, still no fuel flow.....

So I started to read forums and call some local diesel shops. One guy told me my pump needs rebuilt $400-$600 i said ok thank you.. no i didn't fall for it.. So i being mechanically inclined and good memory... watched some videos on youtube assembly/ dis-assembly. took it apart, and found the pin on the cam plate broken in two.. i had some solid steel rods (cut to match) and repaired it.. Everything worked.. 

but still no fuel at injectors.. called a different shop. Finally got a guy who knows what I have. He told me to check for fuel out the return while cranking. There isn't, he said well either the vanes in the front of the pump are stuck and not building internal pressure or something else is wrong. So I removed the pump for the third time, and disassembled completely. The vanes were stuck flat into the rotor. fixed that issue and everything else seemed spec. 

So down to the point of this message, as i was putting it back together, I had gotten too excited and put two screws on the same side instead of across from each other and  the Distributor Block Plunger snapped.... So now i have to find a replacement.. Does anyone have one they can sell me, or know where i can get one. 
I'm in Kannapolis NC 
Thanks guys please Help
Bosch VE4 Diesel Injection Pump

In the picture i need #4 and #5 if separate. Usually together. 

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[gradyc]

The distributor plunger is precision matched to the head and you have to replace both parts as a matched set. You have to replace #5and #8 together.

[gearjammer]

alright thank you... i looked on Hansautoparts.com and found that complete assembly for $49 and it says 9mm injector pump rotor. there's another on there for $249 for 10mm.. can i put the 9mm on or no? i don't know what's in it.

[gradyc]

If it has a 10 and you replace it with a 9 it will lose a lot of power. I would probably take the plunger to a local auto parts and have it measured. Most of them have a slide caliper to measure seals and bearings with and wouldn't charge to check the size for you.

[gearjammer]

And could I bench test the pump before I install it back on the engine?? If so, how can I do it..?

[gradyc]

It takes special equipment to bench test them.