Like mel said, you can't rebuild the things properly at that price. Most quality rebuilders , including my local pump shop have stopped rebuilding stanadyne type injectors because at the labor time and parts involved they wind up being more expensive than brand new ones. At that price the only thing you can guarantee is that, like mel said, they will only last about 20k, if that long, and that's if they are any good at all to begin with.
Don't believe me or Mel, call around some Stanadyne certified pump shops and see what they tell you.. The moment youhave to replace just a nozzle on one of those things you are up higher than what those folks are charging and that's before any labour. Now . tell me how they are doing quality work at that rate.I've delt with one of their pumps before and it was trash.
I tried to save money with another of the cut rate injector rebuilders before theyhad earned their reputation in the hall of shame, diesel careless in Memphis and those POS things lasted a whopping 5000 miles before they started ******* all over the place and I ended up buying a set of new injectors
FOrget the rebuilt ones ( unless going first cabin for a set of moose misters
and get a set of new injectors and get them from Russ here on the site ( type 4 ) so you know that they have been propery tested before you get the things. You will be cash ahead in the long run