Well, I decided to just cut out that wrinkly spot on the bed side and weld in some better metal. I did some hammer and dolly work along the edge and on the bottom back corners. It is shaping up pretty good. A bit more welding to do and back to body work.
Wrinkly
Cut out. I wire brushed and painted everything I could reach while I had the hole open.
New steel welded in and ground.