I like the overall design of your build! I'm thinking of doing a similar build and would like to pick your brain. Did the plans you use come with the design of the counterweight or was that an addition you made? Did you build the trailer from the website design or did you buy one and modify it?
I didn't use any plans. Actually I just asked lots of questions on here as I came to the different parts of the build. As far as the trailer. I built it as well. I measured out the space I needed to mount everything I had planned on putting on it.