Not so sure about production model ...... some of these bits and pieces are leftovers from several builds - so buying them outright would be expensive.
But I think the frame rails will go - I have been asked about rail pairs already
a bit of an update ..... been in the process of topping out a tree in the back yard so I have some pieces for the trailer .....
Got to digging for parts today and found some shackles with no home (I'll need more) and a nice hook - what ya think?