When attempting to slice in Prusa Slicer or Cura the original model returned an 8 (?!?!?) hour print time and gave errors of open edges. I attempted a fix earlier but it did not work properly (print head was making multiple unnecessary travel movements and not extruding).

I performed the following steps to repair this model:

Open with Prusa Slicer.
Right Click: "Fix through NetFabb"
Export repaired model
Open exported model with Tinkercad.
In Tinkercad change the height to 90mm.
Then using invisible boxes I located the best looking spot and blanked everything above/below.
Resized the object to 2mm (original height).
Resliced in Prusa slicer.

Print time was reduced by 6 hours, and it printed properly in 2ish hours with no unnecessary movements.

Thanks for taking the time to make and share these Pedro, I successfully printed Nightmare Before X-MAs from this set, and the portrait from your first set of 360.