If they are keeping it in a walkin cooler, you can hang them for 5+ days with nothing to be worried about. Just like with beef, its better if its aged. Lots of people will hang a side of beef for several days.All that skinning them would do is dry it out and loose meat. As long as the deer is field dressed and washed out and kept in the cooler its no big deal to pull it out for a few minutes to take some pictures.