I got the Cart before the Horse in my last post. The swivels went in easy, but the emergency brake handle relocation was a "pain in the drain" to say the least.
The instructions say the bracket that lowers the handle may not line up with the threaded holes in the bracket, they don't. Then the handle holes don't line up with the threaded holes in the lowering bracket.
The instructions mention these mis-alignments may occur and suggest drilling out the tapered hole and die grinding the holes in the brake handle. Easier said than done, fortunately I had my shop and tools to make these corrections.
I do not recommend the Sportcraft seat swivels from Eurocampers. Knowing this problem could be an easy fix with another bracket with the correct dimensions on the holes. Shop smarter than I did and save yourself the grief!