Tonight I wired the PTT buttons and also completed the wiring for the strobe power supply. Yesterday, I ordered the right size jacks for the microphone and the connectors for the wing/landing lights.
I borrowed a watt meter to test the power out and VSWR of the VHF transceiver, but I still need a couple of BNC cables to go from the transceiver to the wattmeter to the antenna. Hopefully tomorrow I'll be able to test it.