Here's where I'll keep before and after pictures of other work. This first one is the project I started immediately after the Mirage featured in the "Details of an Installation" series. It took about 8 weeks instead of the forecasted 4-6 weeks, but that is another story. We removed almost all of the 1970's vintage radio equipment and replaced them with a full compliment of Garmin equipment. This saved about 85 pounds overall and improved the situational awareness available for the pilot by bounds.
This is a Cessna 206 that took about a week to do. It came to us with a big hole in the middle of the panel for us to install the avionics in. I didn't get a picture of it, but just imagine nothing in the middle of the panel except a hole showing wires and control rigging.
I did this Piper Cheyenne I in just over two weeks. It was far simpler than the King Air, but still had plenty of little snags to keep it frus... err... interesting. We pulled out some older Collins gear and replaced it with shiny new Garmin stuff. In keeping with weight savings, this removed a net 25 pounds.
Here's a Jet Commander (turboprop) that we installed a couple radios in. The company the owns the plane pulled all the old stuff out and we had to sort out all the wires and patch the new stuff in. Originally it was a 5 week job. They brought it to us two weeks late and needed it a week early, so I worked nights and weekends getting it done. Everything worked the first time and the test flight was a success.