The four instrument support angles were removed and the holes were deburred. Based on the hole location on the individual instruments, corresponding holes are then drilled in the support angles. The Angles were re-cleco'd in place. First the BMA EFIS was installed and then the Garmin GTX-327 Transponder. The two air vents were test fitted as were the AutoPilot and COM instruments, the Intercom and Aux Power port were fitted. The Flap switch and Starter switch were also fitted. A few minor glitches were found. The hole for the EIS warning light is too small and the support angle near the AP and COM needs to be adjusted.