Then a made a small piece and filled in the gap between the k-frame and frame rail. I figured that would look cleaner and also distribute the force and weight over a larger area to make sure my new welded seam would hold up okay. (I'm a relatively new welder and welding an outside corner on a frame was a little concerning for me). I'm also going to fill the gap on the underside of the k-frame to frame so, this thing should be rock soild, so I think the new seam should be fine.
Before...
After......much cleaner look..
Then I boxed the motor mounts..probably overkill, but it never hurts..