Three years of printing
Thingiverse is still one of the best places finding fine models. We found this Jack-o-lantern model there too.
We found out why we are unable to print with support: this is a bug (or feature) in Slic3r. But due to this we had to modify the model and add the support material manually. We are considering to install 0.5 mm nozzle to our old printer. This way at least that could print with support.