Part of Constellation box

Hello experts and enthusiasts
I have recently got my hands on a nice era appropriate (ish) box for my constellations, but its missing the top layer or top panel of the box.
Id like to find one of these panels if possible so i can put my paperwork underneath and the watches on top.

This is a long shot but does anyone know where i could find one? iv been all over the internet but though maybe one of the long time collectors here may know of one sitting somewhere. (i realize i can not purchase off the forum) but thought maybe someone here would know of one somewhere in internet land. .

as always. thank you
Heres a picture of the box, the top sheet would lay on the little steps inside the box

That is what i figured, but thought in the off chance someone may have a tray and not a box.
Nice to know an experienced person has seen one, wont be finding one my self then.

Thank you

Thank you sir for your time
The box was fairly cheap, so i didnt expect it to be very nice. Turns out its very nice, but missing the tray.

Possible you could find some red flocked cardboard and make one?

Tom