Great job!
I have made quilts out of Harley T-shirts for our motorcycle club to raffle off. So if he has any shirts that he doesn't wear any more, don't fit, have a stain or whatever you could use that as well because most the time the best imprint is the one on the back from the dealership. But I'm not sure how you would get it without spoiling the surprise of Christmas.
Love how you used official Harely colors for the sashing too!