Yes, these are removable. The forward ramps are bolted to the floor, the reward pair are attached to the front one's by the pull-out pins. I made them this way so that I wouldn't have to strap the rig down on top of the ramps, although they are strong enough to do so. The toung box is bolted to the welded support structure. The winch plate had to be chopped up to fit inside the box, this plate is also grade 8 bolted to the support structure. I attached a seporator plate inside the box to keep the rigging clear of the winch itself. I also ran power to a custom made electrical box to contoll the recovery lights, inside box lights, and main power for the winch. On the front of the box I cut-out for the haus fairlead, which is bolted to the winch bracket.
I thank you all for your comments about the trailer. I spent a good deal of time designing this set-up, and then building it. If these pictures help anybody with their set-up, enjoy!
By the way, I purchased the traction plates from J. C. Whitney item number AJQ492125W, and they help immensley.