I pulled my kick up rudder plans out , I don't know if you can do much without copies . My copy was not included in the 31' plans , he sent them after I requested them . You might try contacting him again ,it shouldn't be that much of a problem for him to make a copy . I plan on hopefully using a dagger board rudder on my 31. There is a picture on the web of a 27'8" using one . The kick up rudder profile is the same as the dagger boards , so a modified dagger board should make a rudder . I can try and describe the kick up plans and provide numbers ect. but I wouldn't feel right about copping the plans . Rick