back in the day, I used to build OL teams featuring pitchers who hit like DHs, yet posted mound stats that would keep the team competitive. This was before dymanic pricing, but recall using the following guys with some success:
1930 Ruffing (Yankee version)
1935 Wes Ferrell
1925 Big Train (as mentioned by contrarian)
1915 Babe Ruth
'49 Bob Lemon
1955 Don Newcombe