Sorry but this past episode or two has been COMPLETELY implausible
Nobody in their right mind, if they were Raymond, would continue to go meet with the Russians.
The Russians, for their part, would have no compunction about killing him outright and worrying about the art later. Art is insured, after all. Even if it wasn't insured, they would still kill him and take the monetary loss. They could always make it up later.
They would either kill him outright or torture him and/or his family to find out where the art was, and then kill them all.
Also, Ray keeps going back to his house and place of work like no big deal. The Russians would have already killed and/or kidnapped all of his friends and family. The house and Fite Club would not be safe for anyone to go to.
The bottom line is this: in real life Ray would have to take all of his family and friends and disappear permanently from LA. There is just no other way to survive. All of this is completely implausible crap.
This is getting to be a bit much to swallow.