Matt, that tiny amount of play in the roller pockets in your photos should not result in functional problems when shooting. The rollers should remain well engaged with the slide until the barrel recoils back enough to open up the cam voids in the middle for the rollers to slide into, freeing the barrel from the recoiling slide. The important tolerance is the tightness of the barrel hood to the slide's breach face, which looks pretty good in your photos.
Matt, if you don't want your gun I'll take it. I think my son would like one of his own, and they're not the most common thing to find in gun stores anymore. Besides, I don't think he wants to wait another 30-40 years to inherit mine.
Scott