My taxidermist said the same thing (do not salt).Cool it down, skin on skin, roll and freeze. I’ve asked a few really good taxidermist and all said not to salt. If you were on a fly in hunt for 10-14 days with no access to freezer/dry ice, that would be another story.
Check with your taxidermist or the tannery doing the work - not every tannery will accept a frozen hide, because they rarely stay frozen and warm spots cause so many problems - and that means they don’t care how well you tell the story, they have a hard no on frozen hides.Hope to drive back to PA from Idaho with a processed elk and hide this Fall. Some say to salt the hide and some say just fold it up and freeze to transport home. Thoughts? Experiences?