So since I got my shiny Sableye first, it means I'm first in the shiny race so I get to keep my shiny Pumpkaboo, which as you can see is now a shiny Gourgeist.
I named her Winifred, which is the name of the main witch from Hocus Pocus (great movie by the way) and she took about 193 eggs.

Thanks to dannybleachkingamvs for helping me evolve her because pumpkaboo can only evolve through trade so thanks again for your help.