OK to convert this receptacle to GFCI receptacle?

In our kitchen we have a toaster oven which sits on top of a radiator cover, next to the refrigerator. I want to change the receptacle that serves the toaster to be a GFCI receptacle, to make it safer to use. The receptacle is behind the refrigerator, but to the far right, and the frig is 4 inches away from the wall due to the copper water supply line that goes to the ice maker, so I would be able to reach the receptacle without moving the frig in order to test or reset the GFCI. There is a separate receptacle back there that serves the refrigerator, on its own dedicated circuit. The receptacle I want to change is about 9 feet from the sink, which is on the opposite wall. We're on NEC 2008, which doesn't seem to have the "readily accessible" language in section 210.8, so is it OK within the code I'm under to make this a GFCI receptacle? Pics attached. Thanks.