I first drill the aluminium angles for the radio trays and GPS support bracket. The angles got installed and retrieved a few times to get a correct fir.



For sure some problems creep up once the angles are installed. Here is one, the two holes are a bit close. The lest hole will get a rivet but the right one is for a nuplate, I think I will install a one leg nutplate.



I then cut the subpanel for the radio trays. In fact I think I will be able to install the trays without them sticking out below the subpanel. I have not fabricated the support brackets for the trays on the subpanel as it is not that square on the workbench, I will do it once it is in the fuselage.



I then finished the alarm lights support bracket by riveting the nutplates and glueing the shims.