I'd try it!
I just finished painting my new foss foam rudder that I payed 415 dollars for. When I went to install the rudder in the new rudder head that I payed hunter (325) to make from the original I had a big problem. The hole was not drilled in the rudder, but an indention was made in the rudder to show where to drill the hole. Well.... they were off about a half inch. It took me 2 days to figure this out. My neighbors are having second guesses about me after seeing me wrestle these two strange contraptions out in the front yard. I thought I was taking the easy way instead of the hassle of designing somethng on my own. Now that I have the rudder on the boat it does not "pop up" all the way out of the water. So, now I must design something to keep the rudder out of the water. I wish you the best.