The person to talk to about rebuilding your nozzles, if he is still offering that service, is Greazzer, the person who posted right above.
Pay to have him do it. He has the experience and expertise to do it right.
I've used him several times and he's always done a great job.

You will be wasting your time and money to try and do it yourself for one set of injectors.

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1984 300SD 300,000 miles--two tank WVO setup
2.88 diff & 500SEL anti-squat rear end