I dont think it was too bad. I believe the major concern is the engine. Tho it has wood blades. Sudden stopage in a engine is never very good so I am sure that the bulk of the repairs will be the engine tear down and inspection. As for the fuselage and gear, should not be too bad.
At the begining of the month, a P-51 in australia made a emergency landing. His decision to land in the grass might have caused more damage then it would have on pavement.