Just got my cat trailer back from the galvanisers today, cost was $1,800 (gone up considerably since Covid) including all the brackets, guide ring and other assorted bits and pieces, I will take some photos tomorrow. I built a new frame, the old one was pretty sad, and used lots of the old stuff that was still OK, Currently cleaning up the suspension and doing general "stuff" while it's easy to get to. Thought of making an aluminium one, but because I was using lots of the old trailer, sizes were not suitable. Got some new U bolts and odds and ends, nothing is cheap these days! I need to tap out some threads that are filled with zinc, but got that half done now.