So finished assembling the new treads and test fitted them on the chassis.
It looks good! Downside is my CAD model was a little bit off, so the spacers spacing the sprockets so they interface with the chain on the boogie wheels is a little bit off (looks like an 1/8 of an inch or so on each side). Opps. But my 3D printer has been fixed and the Taulman Bridge Nylon has arrived, so I will print some spacers. They will either be a temporary measure to ensure the new spaces fit or as a permanent solution if they work well (really depends on how well they hold up).
That is all for now!