I didn't do a thread on here, but I'll post some pictures. I welded the entire top, around the ends and along the entire pinch seam after I pounded it over the bottom. I'll probably do a mini boat side to the frame rail when I get around to it. As is it is strong enough for most trails, but there's room for improvement if the stupid factor increases. (and that always seems to happen, since it's not a DD anymore)
-Cut out 1/8" below the sill, cut up on the outside of the pinch seam to leave the double layer of metal where the rocker meets the floor for more meat to weld to, taper the ends of 2x6 box tubing if you want to, or just cap it.
-I left a slight tip down to shed water from the doors, and basically welded it flush with the front and rear wheel wells.