So, the long story short is that I decided to remove the VP-100 from the RV-4 and put it in the RV-6a and put the new VP-50 in the RV-4.
I had a large amount of wiring left over from the installation kit for the VP-100 so I didnt need a complete wiring installation kit for the conversion. Marc loaned me the crimping tool for the connectors that the Control box uses so I could crimp my own connectors.
I started on a Saturday morning and was operational by noon on Sunday, including talking with several visitors who came by the hanger to check out what was happening.
I was hoping that the VP-50 box pattern was as the same as the VP-100 but the VP-50 box is slightly smaller. I had to redo the brackets that attach the VP-50 to the angles in front of the instrument panel. This took several hours to make new brackets, install platenuts, and prime.
The actual wiring was extremely easy as I used my old load planning and new load planning spreadsheets to remove the power pins from connectors one by one and either use them as is in the new connectors or redo the power and ground connects to the various avionics equipment.
The VP-50 doesnt have all of the features of the VP-100 so I had to reinstall my master switch and flap switch. As I still had them available, it was simple to redo them. I had to drill a new whole in the panel to the right of the last switch on the VP-50 switch panel for the flap switch.
Here is the finished panel with the VP-50 installed. The Trio AP was also removed to be installed in the RV-6a and replaced with a Dynon AP for RV4chicks simple VFR fun plane.
