Looks good, had to laugh when you said 'have to let them have something', reminded me of my racing days and race day scrutineering, I knew all the scrutineers very well and one day as a laugh I put something on the car that was against the rules, highly visible, but easily removed, they spotted it and said 'OK, that was too easy, what else have you done' then went over it with a fine tooth comb, lol.All tidied up and regoed. They did ping me for no side markers (have to let them have something). Roads and maritime have various bulletins regards building trailers. I will try and read them next time.
Have all the hinge and latch hard ware to build some drop sides. Just have to get some sheet folded up. Also purchased a drop hitch to level it all out.