We just bought an 1885 row house where the hardwood floors in the kitchen are painted in a large diamond pattern (black over natural). We LOVE how it looks, but it is severely worn in the high-traffic areas. I'd hate to sand off any of the "patina" but I also don't want feet full of slivers. Is there a way restore and protect it without changing the look too much? Could it just be clear-coated as is?