Well, unlike the Alpine models, the Sprinter line does not have a cedar lined closet.
But, all hope is not lost...
Stopped at the home stuff box store and found cedar paneling in the closet section. One box = 15 sq. ft. This, some light duty plastic anchor screws, a can of spray paint to cover the screw heads, a bit of measuring, a mitre saw, electric drill and drill bits and I was able to install about 12 sq. ft. of paneling in a day. Pictures in the photo section in folder "the gypsy, Belle III"