I checked over at the now-closed LEMB forum and was able to confirm the info you already have though there is nothing on the tail assembly. Reference is made to scale drawings here A. L. BENTLEY DRAWINGS | Products and there's a nice set of drawings for the Pfeil which might help you. A quick scan does not seem to show sections through the stabilizers but the vertical stab seems to be symmetrical and not of airfoil section. That may stand to reason given the push/pull engine layout but I'm not an expert in such things.
Cross tail made of 2 components both NACA 23012.5. The tail set up of the Do335 came forth out of the patented project P.59-04 patent number 728044 given to Dornier.
Cross tail made of 2 components both NACA 23012.5. The tail set up of the Do335 came forth out of the patented project P.59-04 patent number 728044 given to Dornier.