It wasn't so bad after all

I did it - I made the alterations and am very happy I did.  It was pretty easy to do - just alot of ripping stitches out.  I took the arms in (about 1 1/2 inches each!) and let out the sides towards the bottom (3/4 inch each).  Once those adjustments were made, it wasn't too terribly short.  I didn't have much extra length to hem it so I just enclosed the raw edge in the same bias tape I used on the arms (brillant idea courtesy of my hubby!).  It isn't very visible in this photo - kind of blends in with the black shorts - but the black band along the bottom makes it look finished.  It is super comfy and was nice and cool for our very fun croquet party last night.  I love my shirt!