replace insides of gas cap

My gas cap has a torn gasket. Stant 10800 is supposed to be OE replacement, but it won't be the body color. My perfect solution is to buy the new one, unscrew the insides, and use them to replace the insides of my original cap. The original one has screws holding the insides to the outer part. Does the Stant replacement part have those too? I can't find a photo that shows it from the right angle.