92-98-400ls

I just bought a 98 LS 400 with the wood steering wheel. The finish on the wheel has been damaged by the sun or age and has fine cracks on the finish. The cracks don't seem to extend deep into the wood. Does anyone know if these wheels can be re-finished? Is it possible for an individual to do it or does it take an auto restoration company? Am I stuck with replacing the wheel$$$