The hangar neighbor next to me has a Luscombe with an 0-200 on it. They just experienced 2 stuck valves, did the rope trick, and the valves stuck again. Also the engine has been on at least 3 other airplanes ( including a homebuilt) before it found it's way to the Luscombe. They have now sent the engine to LYCON for an overhaul.
They told me the cost is going to be around $18K, and does NOT include new cylinders. I guess that is the going rate these days.
So, why you would invest in an engine with a crank DOUBLE the limits of TCM just seems unwise.