Thanks for the info!

Mine is still holding up somewhat, but it has a small crack in it.
I've replaced the dead bulb with a 2400k LED bulb that looks exactly like an incandescent in the light output, so hopefully I won't have to disassemble the dome again, because I'm certain it won't survive it.

I could maybe 3D print one if I take some measurements, but it won't look as good.

However, I will be looking for one of these in the meantime.