A local Chrysler repair shop has given me a $1300. estimate for replacing the timing belt, tensioner and water pump on my 2001 PT Cruiser. Seems steep to me after checking online prices for the parts (not much more than $500 from Carparts wholesale for a kit). They've also suggested additional work on the car: Lower control arm bushings replacement, sparkplugs, flushing/replacing coolant and a new rear wiper at a total cost of $2000. Question #1) Is the cost high for the parts/labor involved? Question #2) Would it be a good idea to have all the work done while in the shop?