When I was much younger and impatient I would go to a mechanical shop and when they said they could not get it today which was when I needed to get it done for various reasons, I would end up buying the part and doing it myself. They were simple jobs like changing out a reverse backup light switch on a manual transmission or a thermostat. I really wanted to pay to have someone do it, but the hassle of having to go back another day was not worth it to me and I had the ability to do it myself That's the important thing. Knowing your limitations!