Here are some more pictures after removing floor board. When I pulled the floor board, I found a lot of weeds and an old lock underneath the floor. Some of the foam was wet and I removed the wet areas an I am going to replace it with expanding foam. I also removed the foam along the seam...
I am new to this post but have been researching others modifications on this site. I have started my own conversion with the help of many of the posters on this site. Thank you to all of the previous posters for your ideas.