Well, if you are near Tacoma, Charlie is the service manager down there. But the rates are probably no cheaper than Kirkland.
The best Senior Infiniti Tech I encountered is Eric at Beaverton Infiniti. The rate is less, there is no sales tax, and they don't mind if you bring your own parts procured from Joe
http://www.infinitipartsusa.com
Might email MiscrosoftQ45T and see where he takes his in Seattle.
And you need to read the timing chain guide article before you embark on anything, including starting the car again. Seriously.
We can help you get your car into an as new condition, but as Q45tech said, it won't be inexpensive (compared to a Kia) if you don't have the tools and some ability.