Misc Mullins Red Cap Trailer parts needed

[toms32]

Hi Guys need some help to put my original Mullins red cap trailer together

1. a pair of chains to hold the back in the down position or even a beat up one that I can use as a template to try and match up something
2. a pair of springs that go on the inside of the box on each side that attach to the top props that hold the top up. I understand that the club years ago made sets of these. even a pair of these versus originals will work. Even if some one out there knows of springs from another application that will do the trick.
3. Tail light arm and tail light

any assistance will be most appreciated thanks Tom Gormley 203-405-1893 Connecticut area