That's about what I've heard everyone else say it costs to rebuild an injector pump, though I was under the impression that the basic DPS pump was a bit more common. Mostly on agricultural/construction equipment. Perhaps not.
I think you got off easy with your 2.5--I'm rebuilding everything BUT my injector pump.
Don't forget to double-tension the idler pulley when you reinstall the (hopefully new) timing belt! Very expensive things will happen if you don't, according to the green bible.
I forget--Did you buy the specialty pump timing tools, or did you make your own? Since I wasn't rebuilding my DPS pump, I left mine attached to the timing belt housing.
--Mark
1973 SIII 109 RHD 2.5NA Diesel
0-54mph in just under 11.5 minutes
(9.7 minutes now that she's a 3-door).