Cobbled together in PrusaSlicer Jupiter with the socket, printed fine from my side and looks great.

Will print fine in PLA, I used Eono White PLA in 0.2mm layer height.

For the light use for best fitment a E14 bulb or a small E27, the hole is to tight for the most standard sized E27 bulbs.

Printed Jupiter with 100% infill in 0.2 layer height.

For the Stand use at least 3 if not 4 walls for more stability.