3d solution tech pla
After removing rafts and trees, I attached all the pieces using Gorilla Super Glue Gel. I had to do a little sanding/filing to to get the wheels on the axles. I also bored the holes out a little more on the harness arms and didn't glue that so it can be moved up and down.
The changes I made for Version 2 allowed me to put the wagon together without as much effort to get parts to fit.
Dude added for scale.