After finishing with bezels and screws i printed the placards. For the main panel I used transparent sheet to print them, then i used transparent packing tape to protect the writings and glued them on the panel with glue stick and it's holding until now, you may come up with a different idea. Of course having transparent sticking sheets would be better, si I will purchase some of them from internet and replace the existing ones. For the lower panel, i printed the decals on normal A4 paper, and put some transparent packing tape on top to protect them. Underneath I used double sided tape so i could stick them to the surface (becomes the same as pr emade stickers).
Below are the decals for the main panel and the lower panel. The credit for the decals goes to the author Zahid Sadal from Home cockpit builders on facebook for doing a great job. You can download them as .psd file and edit or print them. Please change the tail number to your desired one, the one in the decals is used by me D-DEDT. For the lower panel i printed the placards on normal A4 paper and cut them as close as possible to the letters, which will minimize the color difference between the panel and the text background.