Edited a bit....
Digitek,
Sorry to see the rust situation, some of that looks like more than surface corrosion. At least you have Universal Trailer as an ultimate backstop...
http://www.universaltrailer.com/
Today, I finally took delivery of my new XXXX brand 7x22 that's been sitting at the dealership for about six months pending some warranty issues. XXXX went out of business several month's ago, no recourse on warranty at this point. I'll open her up a bit and give a full report on another thread.
The Universal Trailer conglomerate should be able to help you, unless their top-end items like Featherlite are not worth keeping a good reputation over.....