Hyundai Repair: repairs?, coolant leak, interval time

Question
I recently took my 2003 sonata to a local dealer for a recall repair of the subframe. When i picked the car up the mechanic told me i neede to replace the water pump,timing belt,gasket and coolant as well as the high pressure side of the power steering system.
How do i know they just weren't trying to upsell me because of replacing the subframe for nothing, and if i do need these things fixed, how hard and time consuming would it be for me to fix, because i don't have the 1200.00 dollars they wanted to charge me to fix said items. And how can i troubleshoot these things to see if they are actually in need of replacement.

Answer
Any good technician will inspect your car for things that need to be done.  If the technician is honest, this has the potential to benefit everyone.  The first question is why these things were recommended.  Was the water pump recommended because it was leaking, or simplybecause they're doing the timing belt.  If leaking, you should be able to inspect the engine and find a coolant leak.  Similarly, I presume the power steering line was recommended because it was leaking.  Again, a visual inspection should be sufficient to determine whether this is the case.  I presume the reason they recommended the timing belt was based on the maintenance schedule.  The recommended maintenance interval for the timing belt is 4 years/60,000 miles.  On the four cylinder, I've seen numerous failures close to the interval time and/or mileage.  On the six, I've never heard of nor seen a failure, but the belt definitely won't last forever, either.  Unless you manage to catch the belt right when it's getting ready to break-- the teeth will be cracked-- it'll be impossible to determine how long it will be before it breaks.

How hard and time consuming these things will be depends on your skills and equipment.  If you've done timing belts before, this one should be little different than any other simple timing belt.  The water pump is accessible and can be unbolted once the timing belt has been removed.  The power steering pressure line is accessible from the top of the vehicle, but you'll need to remove the air cleaner box and use a crow's foot to remove the lines from the rack.  In addition, it's routed in an inconvenient way behind the engine, making it difficult to remove it even after being unbolted.