None have addressed mounting the prints..I suppose several methods are out there and better than my quick and ok method.  That method is to use foamcore board and a thin mat of suitable color for the prints.

If the place with the foamcore can cut it to size, good. This stuff does not cut cleanly without a very, very sharp knife or razor and guide to follow for straight edges.

I print with a very slight border (crop to slightly less than final size with print for the correct size to get a narrow white border).   Then, using painters tape(the stuff like maskng tape that comes off easily) to hold the print in place on the border; the mat is secured with spray adhesive.   Well, get the mat first and mask off for spray adhesive to avoid the print area and go for it.   That is a simple temporary method and it looks better with a mat than without.

This is just 1/4 cents worth.  I have not done much temporary framing or hanging of images.  Tom.