For a 1st time scratchbuild, the trailer look fine. Just keep adding details and the decking with some paint and it will look great. Strength versus scale can be a tricky problem. For me on a trailer, I would go for strength as you never know what you might want to haul on it. Just ask Izzy when he put dirtpusher9's dozer on his lowboy. All 150# of it. Trailer came thru with flying colors but I am not sure about Izzy

He has been trying to get his IH to pull its front wheels off of the ground every since
Keep the updates and pics coming. Always nice to see someones dreams come to life.