Vacumned aft area and riveted top baggage channel to baggage bulkhead former. Performed ELT ops check. Attached shoulder harnesses to anchor cables. Installed lower baggage bulkhead. Finalized routing of static line and headset bundle using tie wraps and anchors. Vacumned cabin area and removed canopy spacers and masking tape using mineral spirits. Reworked pitot and static connections to prevent them hanging down below panel. Installed ADI backup battery. Painted cabin sides to former at wing spar.