4.6 hrs
Started by taking apart the center section and deburring all the holes that were just drilled in the ribs.
Then cut a 5/8" hole in the inner baggage ribs at the front tooling hole to route wires for any electronics that get mounted under the baggage skins. I expect to put the ELT there, assuming it fits. Other builders put strobe power packs under there also. I hope to avoid any high voltage power packs, so the ELT is the only candidate right now.
Then stripped plastic and edge deburred all of the seat and baggage skins. Also deburred the holes drilled in them.