Depends on if you like to get your hands dirty or not. $36/hour is a screaming deal to me. Most shops around her charge $90-$100 an hour for labor. I did my timing belt a couple of years ago, and even though it was totally stressful (did I get the timing right?, did I forget to tighten that bolt?) I absolutely loved it. I learned a whole lot about how things where put together and where they went in the engine bay. The replacement took me the better part of two days, but I'm sure a shop could do it in a few hours. $36/hour is very tempting to have someone do it for me.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless