FYI on the Red Trailer - The Spring hangers in my kit where mislabeled. The left side hanger was marked for the right and visa-versa for the right hanger.
Of course the instructions/diagram had the front of the trailer folded up over the back end... and I had my trailer upside down, NOT folded.... It was all kaddywampus and fubar!!! It took me an hour and a half to decide it wasn't me that was backwards. Just the little stickers.
Mk