Hey, it could have been more contrived, they could've tried unloading their stuff at the pawn shop featured in "Pawn Stars."
As for finding the cache of jewelery in the abandoned locker. It's Vegas. Shit happens, I guess.
I did like the bit at the very end showing all of them at the Blackjack table, seemingly, having a good time and enjoying each other's company. Sort of makes it look like "behind the scenes" they're on fairly friendly terms. Sort of like Worf's similar realization in the Klingon bar partying with his opposition in battle.