Back to working on this.
Never liked the plastic fender to body gasket. Ordered up the cloth fender welting many years ago and finally got to swapping it in. I didn't like the pre-cutouts of the plastic for the bolt locations. So I punched holes instead and installed. With the holes, it bunches up around the radius which I don't mind as the cloth is in contact all around.
Last night installed the Uniball plates I made. Took pic as I was installing so as you can see bolt missing and loose. It is completely bolted up now.
Have been looking for this MB SLK 55/65 spare wheel for awhile. Have an idea that I want to try. We'll see how it plays out.