I had mike do a 64 wood grain for me about 3 years ago.
(
http://www.steeringwheelsbymike.com/ )
Web site says he has done over 1000 restoration for any wheel that is wood grain.
His process is to remove the factory pattern and fix cracks and then put his version of wood grain on the wheel.
I only wanted a crack filled with the matching color and do not touch the factory finish. He can not match the 64 grain with his process. Eventually I talked him into "fill the crack and make it match" He finally agreed and did the job. Came out with matching color and crack hidden. As good as could be expected. Still charge the same $300. that he charges for a total wood grain job. His work is great unless you want it to look like the 64 only wheel.
Next time I will do as Dick B. stated.