[Mr.ac]

Well kind of sounds in the ball park with that price.
$600 for spark plug removal
$100ish for new spark plugs
$300 for new fuel pump assembly
$300 for dealer ass rape fee with out lube obviously.

Then again if you can get the gas station to pay for it, it might be worth a shot. If you where to pay for it out of your own pocket then I would call a few shops to compare prices.
Or you could try and do it yourself. That's if you are handy with tools.