That "neglect" doesn't look any too bad to me, unless I'm missing something. A bit of discoloration due to oil staining and grunge, which at least means it was oiled when it ran, and some rust up where the firebox chimney mounts. Other than that it looks pretty good to me.
So Nick, if that is all too discouraging for you .... I'll take it off your hands, get it out of your sight, and keep you from suffering so! ;c)