Spotted this ad for a 1970 Buick GSX in my old hometown in Long Island: http://longisland.craigslist.org/cto/4078439445.html
Yes, I spotted those 72 woodgrain door panels as well. Didn't notice the levels until you mentioned it.
Levers are small potatoes! What about the headers, high rise, MSD? Probably the carb + Dist have been "upgraded" also.