Wow, I thought of something good enough to swipe! Awesome!

I didn't want any of my frame to show, and a rabbet just seemed the simplest way. I actually had to cut it twice, I don't know what I was thinking the first time, but I didn't cut it deep enough, the second cut I believe was right at 4" up from the bottom. That actually hangs lower than needed, where I had to cut an axle notch, but I had to cut that high for the profile to line up with the front and rear of the floor correctly because the length of the floor stays the same but the length of the route line changes with the depth of the route, so keep that in mind so they are the same when you install! I just laid my wall flat on it's side and pulled it over the edge equally until the profile end met the floor and I knew that was how deep to cut. You may not have this problem at all, but that's what I ran in to.
Looking good!