I did the same thing to my old 1236 jon and lett me tell you. I made the deck 4"
larger on all three sides that stick out. And it saved me from getting swamped so many times its not funny. I them siliconed it to seal it to the boat. It makes the deck nice and big but most importantly it diverts the wakes and waves from comming in if you hit them with the front. Sorry, I dont think I have pics here and the boat is in storage about 500 miles away. I used alum angle (about 3-4
") and made brackets that support a large flat plate of alum.