Although the Wasserfall was much smaller than the V-2, the dimensions were very similar. I created a composite image of a V-2 and a Wasserfall side by side to show the similarities. You can print out the larger image and, if you like, cut out the pictures to overlay one over the other to see what modifications are necessary to go from the V-2 tailfins to the Wasserfall's. I'll post pictures of the Wasserfall when it's completed.
Credit: Pictures from https://www.astronautix.com/
Credit: Pictures from https://www.astronautix.com/