Thanks for the thoughts.
Actually the jacket and shirt wouldn't fit me anyway as my my father was always a very thin man.
I was going to see about selling so it could get a proper home but was sick when I saw the condition it was in.
That's the pits. Most of my clothes have been in storage for the past few months, and I recently discovered that some of them have been chewed up by mice, including some of my Harris Tweed and vintage jackets. So I feel for ya.
Ike jackets, particularly in smaller sizes aren't exactly a hot market item. But as it's family you might want to do something a bit different. Do you have his dog tags or any papers? A shadow box with swatches from the jacket that have the patches combined with any other heirlooms might make a tidy package to keep in the family and keep in sight rather than buried in a closet.
You could shadowbox the jacket as is by folding the sleeves strategically to hide the holes. Cross them over the front of the jacket also in an artful arrangement. All the patches would still show too. Mount it on a piece of acid free matboard with openings perhaps for other items such as photos, newspaper clippings, or other mementos. Put the jacket in your freezer for 24 hours or so to kill any moth eggs. Place a few mothballs or cedar chips in the back of the box too to prevent further insults from moths. Shadowboxes come with a removable back to facilitate changing the chips or mothballs out every few months or so.