Interior panels from Aerosport Products were fitted throughout the main cabin.
The rear panels were taped into place for initial fitting.
After sanding to fit the cabin dimensions, mounting holes were drilled to secure the panels in place. Due to there structural rigidity, only a few screws were needed for each panel.
Once the panels were complete, fitting the rear air vent deflectors was undertaken. A test fit of the 3D-printed deflector highlights the relative position to the default Vans hole. A tracing from outside shows the indicated Aerosport cut line not aligned with actual location.
To correct for the actual location of the opening, a probe hole was first opened in the panel. This was hopefully near the middle of the vent hole. A file was then used to manually relieve the panel material until just the deflector opening was exposed.
The vent grate is clipped into position with small tabs around the inner edge. As a result the tolerances for the hole opening are fairly tight. While it took some time to hand file the holes, the alignments and fit are quite good. Minor adjustments are still needed for the vent lever position, but the main rear panel work before painting was done. Next up is the cabin headliner.