We are still trying to figure out ours as well.
I have a few pannels that have to be replaced. No way around it. I have a few that have some damage but not horrible. I would have been awsome if I just needed to strip and varnish but I way past that. Looks like we may replace wht has to be replaced and then put a veneer on the rest to match it all up. Only thing I can do to get it all to match and look right. Unfortunaly that means I'll loose the Patina.