I will be starting on my first attempt at restoring a steering wheel myself soon. The one I have has quite a bit of splitting on the hub area. I was going to start with some epoxy to "glue" the hub plastic pieces to the metal. Then use one of the fiberglass filler products to bring it up to a sandable level. I have used duraglass before on my jeep and it has held up well. I want to stay away from bondo type fillers as much as possible because they can be soft. As far as the final paint I will probably use krylon. I understand that they now make a line of product especially for plastics.