I'm not from Vegas, so I'm not sure how close it it, but I remember seeing a video break from these guys where they pulled the Ruth/Dimaggio Cut Auto booklet from TTT:
Legacy Sports Cards
8125 W Sahara Ave, Suite #160
Las Vegas, NV 89117
Phone #: (702) 341-6525
As for the Pawn Stars shop, when we went 2 years ago they didnt have hardly anything sports related, other than a handful of Super Bowl rings that had 100k price tags. It was being expanded then though, so it may be worth a shot. Don't get too enamored with the place, as they give you a 30 minute limit for staying and browsing. Good luck!
Marvel Retro Supercollector
Red PMGs: 42/42 TI-22: 21/21 Holograms: 3/3 1990 Impel Autos: 15/16 (Need Daredevil)
Variant Sketches: 35/97 different artists (NAR & Glebes doubtful, will settle for 95/97) Always buying if the price is right!