UPDATE: added a currently untested version with a small hanging hole, the files for this print are marked with _hang

stargate: print with supports at 0.12

base: no supports, i printed at 0.12 but 0.2 should be fine

base: no supports, i printed at 0.12 but 0.2 should be fine

The model has a picture window diameter of 90 mm, probably enlarging it won't create any issues but if you print it smaller the glyphs will likely disappear.

The back holds the picture in place, if you're feeling extra cheap it can be replaced with some little bits of tape