I show 0.8 hours to replace the wires, and 1.1 hours for the spark plugs. Both of those suggest this is not an easy car to work on.
There a a number of different spark plug designs listed for this engine, and some are real expensive. That could add to the estimate you were given. I would ask how they determined the estimate. If something seems wrong, get a second estimate from a different shop.
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Monday, March 13th, 2017 AT 6:18 PM